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CN106480530B - The preparation method of electrospinning high-performance polyphenylene derivatives nanofiber - Google Patents

The preparation method of electrospinning high-performance polyphenylene derivatives nanofiber Download PDF

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Publication number
CN106480530B
CN106480530B CN201610846595.1A CN201610846595A CN106480530B CN 106480530 B CN106480530 B CN 106480530B CN 201610846595 A CN201610846595 A CN 201610846595A CN 106480530 B CN106480530 B CN 106480530B
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nanofiber
polyphenylene derivatives
preparation
methyl
pyrrolidone
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CN106480530A (en
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侯豪情
许文慧
李春根
朱咏梅
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Jiangxi Advanced Nanofiber S&t Co ltd
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Jiangxi Normal University
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/76Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from other polycondensation products
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • D01F6/605Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides from aromatic polyamides

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Abstract

The invention discloses a kind of preparation methods of electrospinning high-performance polyphenylene derivatives nanofiber, comprising the following steps: (1) the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end and tetramines aromatic monomer is dissolved in solvent, precursor solution is made;(2) it in above-mentioned precursor solution, is added into silk agent, forms spinning mixed solution, blended nanofiber presoma is formed by method of electrostatic spinning;(3) it after above-mentioned blended nanofiber presoma being dried, is heat-treated, obtains polyphenylene derivatives nanofiber.It is relatively low that the method overcomes the polyphenylene derivatives molecular weight that general synthetic method obtains, it is difficult to the shortcomings that being prepared into high-performance polyphenylene derivatives nanofiber.Polyphenylene derivatives nanofiber is obtained with good mechanical performances such as high tenacity, high intensity, high-modulus, moderate elongations by this method.

Description

The preparation method of electrospinning high-performance polyphenylene derivatives nanofiber
Technical field
The present invention relates to a kind of preparation methods of polyphenylene derivatives nanofiber, more particularly it relates to Electrospinning Method The method for preparing polyphenylene derivatives nanofiber.
Background technique
Polyphenyl is a kind of rigid chain polymer connected by phenyl, has excellent heat-resisting quantity, the heat in nitrogen point Solution temperature is up to 900 DEG C, can be used for a long time at 400 DEG C;With characteristics such as excellent resistant to chemical etching, rub resistance, radiation hardness; There is good electrical property and the self-lubricating property better than graphite simultaneously.Polyphenyl can be used as high temperature resistant, radiation resistant paint or gluing Agent, high-temperature wearable components, ablation resistant material etc., chemical industry equipment, aerospace equipment, the high-speed cruising that can be used under mal-condition are military On device, it may also be used for High temperature ion exchanger resin.
But polyphenyl is not molten insoluble polymer, hardly possible forming, hardly possible processing.Substituent group is introduced using on main chain phenyl ring Method, its dissolubility can be improved.But huge benzoyl is even introduced on main chain phenyl ring, this polyphenylene derivatives exist Solubility in organic solvent remains on less, and since solubility property is poor, the molecular weight of general synthesized polyphenylene derivatives is all It is relatively low, it is difficult to be prepared into electro spinning nano fiber.
For the substituted benzene oligomer that the present invention is blocked using adjacent dicarboxyl benzene as assembling unit, tetramines aromatic is hinge agent, is passed through Method of electrostatic spinning obtains polyphenylene derivatives nanofiber.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of preparation sides of electrospinning high-performance polyphenylene derivatives nanofiber Method, comprising the following steps:
(1) the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end and tetramines aromatic monomer are dissolved in solvent, forerunner is made Liquid solution;
(2) it in the precursor solution described in step (1), is added into silk agent, forms spinning mixed solution, pass through Static Spinning Silk method forms blended nanofiber presoma;
(3) it after blended nanofiber presoma described in step (2) being dried, is heat-treated, obtains polyphenyl and spread out Biological nano fiber.
In one embodiment, the general structure of the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end:
Wherein R1Selected from such as flowering structure:
CH3O-、In any one.
In one embodiment, the general structure of tetramines aromatic are as follows:
Wherein R2Selected from such as flowering structure:
In any one or the combination of several of them.
In one embodiment, it is selected from silk agent: one or both of PVP or PMMA.
In one embodiment, solvent is selected from: n,N-Dimethylformamide, N, N- diethylformamide, N, N- diformazan Yl acetamide, N, N- diethyl acetamide, N, N- Valpromide, N, N- dimethyl benzamide, N- methyl -2- pyrrolidines Ketone, N- ethyl-2-pyrrolidone, N- isopropyl -2-Pyrrolidone, N- isobutyl group -2-Pyrrolidone, N- n-propyl -2- pyrroles Alkanone, N- normal-butyl -2-Pyrrolidone, n-cyclohexyl-2-pyrrolidone, N- methyl -3- N-methyl-2-2-pyrrolidone N, N- ethyl - 3- methyl-pyrrolidon, N- methyl -3,4,5- trimethyl -2-Pyrrolidone, N- methyl -2- piperidones, N- ethyl -2- piperidines Ketone, N- isopropyl -2- piperidones, N- methyl -6- methyl -2- piperidones, N- methyl -3- ethyl piperidine ketone, dimethyl sulfoxide, two Ethyl-sulfoxide, sulfolane, any one or a few combination in diphenyl sulphone (DPS).
In one embodiment, under the conditions of heat treatment includes: existing for the inert gas, 300 DEG C~500 are heated to ℃。
In one embodiment, under the conditions of heat treatment includes: existing for the inert gas, 350 DEG C~450 are heated to ℃。
In one embodiment, existing for the inert gas under the conditions of, 420 DEG C are heated to.
In one embodiment, inert gas is arbitrary a kind of in nitrogen or argon gas.
It is another object of the present invention to provide the polyphenylene derivatives nanofibers that the method is prepared.
Compared with prior art, the invention has the benefit that
The present invention is used with the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end as main assembling unit, and tetramines aromatic is hinge Agent obtains polyphenylene derivatives nanofiber by method of electrostatic spinning.The method overcomes the polyphenyl that general synthetic method obtains and spreads out Biotinylated molecular weight is relatively low, it is difficult to the shortcomings that being prepared into high-performance polyphenylene derivatives nanofiber.Polyphenyl is obtained by this method to spread out Biological nano fiber has the good mechanical performances such as high tenacity, high intensity, high-modulus, moderate elongation.
The above-mentioned of the application and other features, aspects and advantages are more readily understood with reference to following detailed description.
Specific embodiment
Unless otherwise defined, all technologies used herein and scientific term have and the common skill of fields of the present invention The normally understood identical meaning of art personnel.When there is a conflict, the definition in this specification shall prevail.
As used herein term " by ... preparation " it is synonymous with "comprising".Term "comprising" used herein, " comprising ", " having ", " containing " or its any other deformation, it is intended that cover non-exclusionism includes.For example, the combination comprising listed elements Object, step, method, product or device are not necessarily limited to those elements, but may include not expressly listed other elements or Such composition, step, method, product or the intrinsic element of device.
Conjunction " Consists of " excludes any element that do not point out, step or component.If in claim, this Phrase will make claim closed, so that it is not included the material in addition to the material of those descriptions, but relative normal Except rule impurity.When being rather than immediately following after theme in the clause that phrase " Consists of " appears in claim main body, It is only limited to element described in the clause;Other elements are not excluded except the claim as a whole.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open When range " 1 to 5 ", described range should be interpreted as including range " 1 to 4 ", " 1 to 3 ", " 1-2 ", " 1-2 and 4-5 ", " 1-3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range be intended to include its end value and All integers and score in the range.
In addition, indefinite article "an" before element of the present invention or component and "one" quantitative requirement to element or component (i.e. frequency of occurrence) unrestriction.Therefore "one" or "an" should be read as including one or at least one, and odd number The element or component of form also include plural form, unless the quantity obviously refers to singular.
The present invention provides a kind of preparation methods of electrospinning high-performance polyphenylene derivatives nanofiber, comprising the following steps:
(1) the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end and tetramines aromatic monomer are dissolved in solvent, forerunner is made Liquid solution;
(2) it in the precursor solution described in step (1), is added into silk agent, forms spinning mixed solution, pass through Static Spinning Silk method forms blended nanofiber presoma;
(3) it after blended nanofiber presoma described in step (2) being dried, is heat-treated, obtains polyphenyl and spread out Biological nano fiber.
The substituted benzene oligomer of adjacent dicarboxyl benzene sealing end:
The substituted benzene oligomer structure general formula of heretofore described adjacent dicarboxyl benzene sealing end:
Wherein R1Any one in such as flowering structure:
CH3O-;R1It is preferred that Group.
Work as R1ForWhen group, the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end the preparation method comprises the following steps:
A. coupling reaction is blocked
25.11g (0.1mol) 2,5- dichloro is added in the flask with four necks,round bottom equipped with nitrogen protection reflux condensate device As end-capping reagent, 3.317g is added in benzophenone reaction monomers, 2.7308g (0.01mol) 4- bromo rutgers afterwards (0.011mol) nickel chloride bipyridyl makees catalyst, and 21.45g (0.33mol) zinc powder makees reducing agent, 11.54g (0.044mol) three Phenylphosphine makees complexing agent, and reaction dissolvent is made in 250ml water removal dimethyl acetamide (DMAc), and it is small to control 80 DEG C of reaction temperature reactions 20 When after pour into carry out exchange of solvent in 500ml anhydrous methanol while hot, after 6 hours, filter, then wash away zinc powder with dilute hydrochloric acid, finally Remaining triphenylphosphine in being reacted only with massive laundering, 80 DEG C of dryings of vacuum obtain 22.6g rutgers envelope for 12 hours Gather to benzene analog derivative, yield 90% at end.
Block coupling reaction synthetic route are as follows:
B. end group hydrolysis
The first step is added in the flask with four necks,round bottom equipped with nitrogen protection reflux condensate device and reacts obtained product 16g (0.4mol) sodium hydroxide is added in 22.6g, and 120ml tetrahydrofuran, 80ml distilled water is back flow reaction 8 hours, cooling, uses It is 3 that the dilute sulfuric acid of concentration 30%, which adjusts pH value, and heating is boiled to there is powder sample precipitation, with massive laundering to neutrality, after suction filtration 80 DEG C be dried in vacuo 12 hours, obtain 20.34g withThe polyphenyl class blocked for the phthalic acid of substituent group is spread out Biology, yield 90%.Its molecular weight ranges 760g/mol-2553g/mol, degree of polymerization 2-12.
End group hydrolysis synthetic route are as follows:
Tetramines aromatic:
In step (1) in the preparation of precursor solution, there are four " the tetramines aromatic monomer " refers to that aromatic contains The compound of amino.
Illustrative tetramines aromatic monomer includes, but are not limited to:
3,3', 5,5'- biphenyl tetramine, 3,3', the equal benzene tetramine of 4,4'- biphenyl tetramine, 1,2,3,5-, 2,3,5,6- pyridine four Amine, 4- methyl -2,3,5,6- pyridine tetramine, 3,3', 5,5'- benzophenone tetramine, 3,3', 4,4'- benzophenone tetramine, 2,3,3', 4'- diphenyl ether tetramine, 3,3', 5,5'- diphenyl ether tetramine, 3,3', 4,4'- diphenyl ether tetramine, 3,3', 4,4'- diphenyl sulphone (DPS) tetramine, 3,3', 5,5'- diphenyl sulphone (DPS) tetramine, 3,3', 5,5'- diphenyl methane tetramine, 3,3', 4,4'- diphenyl methane tetramine, 2,2', 3,3'- diphenyl methane tetramine, 2,2', 3,4- diphenyl methane tetramine, 3,3', 4,4'- bis trifluoromethyl hexichol urotropine, 3, 3', 5,5'- bis trifluoromethyl hexichol urotropine, 2,2', 3,3'- bis trifluoromethyl hexichol urotropine, 2,2', the bis- trifluoros of 4,4'- Methyldiphenyl urotropine, 2,3,3', 4'- bis trifluoromethyl hexichol urotropine, 1,4,5,8- naphthalene tetramine, 2,4,5,7- naphthalene tetramine, The combination of any one or more in 2,3,6,7- naphthalene tetramine.
Electrostatic spinning:
Electrostatic spinning described in step (2) is a kind of special fiber fabrication process, and polymer solution or melt are strong Jet spinning is carried out in electric field.Under electric field action, the drop at syringe needle can be become conical (i.e. " taylor cone ") from spherical shape, and Extend to obtain fiber filaments from conical tip.This mode can produce the polymer filaments of nanometer grade diameter.
Condition used by the electrostatic spinning are as follows: spinning temperature is lower than 30 DEG C;Preferably, spinning temperature is 5~30 DEG C; It is highly preferred that spinning temperature is 10~25 DEG C.
Spinning voltage is 10~40KV;Preferably, spinning voltage is 10~30KV;It is highly preferred that spinning voltage be 20~ 30KV;It is 10~40cm that spinning, which receives distance i.e. solidification distance,;Preferably, it is 15~35cm that spinning, which receives distance,;It is highly preferred that It is 16cm that spinning, which receives distance,.
The range of the nanofiber diameter of electrostatic spinning: 50~500nm;Preferably, the range of nanofiber diameter: 100 ~400nm;It is highly preferred that nanofiber diameter is 200~300nm.
Drying means described in step (3) refers to decompression 30-50 degree drying.
300 DEG C~500 DEG C are heated under the conditions of finger existing for the indifferent gas when heat treatment described in step (3).
As a preferred embodiment, heating temperature is 350 DEG C~450 DEG C.
As a preferred embodiment, heating temperature is 420 DEG C.
As a preferred embodiment, inert gas is any one in nitrogen or argon gas.
As a preferred embodiment, the molecular weight of PVP is between 10000-1300000.
The present invention is specifically described below by embodiment.It is necessarily pointed out that following embodiment is only used In the invention will be further described, it should not be understood as limiting the scope of the invention, professional and technical personnel in the field The some nonessential modifications and adaptations made according to the content of foregoing invention, still fall within protection scope of the present invention.
In addition, if illustrated without other, it is raw materials used to be all commercially available.
Embodiment 1:
At room temperature, by molar ratio be 1:1 withIt is blocked for the adjacent dicarboxyl benzene of substituent group Substituted benzene oligomer and 3,3', 4,4'- biphenyl tetramines are added in n,N-Dimethylformamide solution, magnetic agitation 2h, shape At mixed solution, and it is labeled as solution A.
In solution A, suitable PVP (Mr=30000) is weighed, is made into the solution that concentration is 30%.Magnetic force stirs at room temperature 1h is mixed, 1h is stood, resulting solution is labeled as B solution.
B solution will be prepared to be placed in device for spinning, adjusting solidification distance is 14cm and voltage is 21kV, is accessed on wire netting Cathode will be collected into polyaniline-nano Precursors of Fibers on the wire netting as cathode.
Obtained polyaniline-nano Precursors of Fibers is depressurized into 40 degree of drying, 420 DEG C is heated under condition of nitrogen gas and obtains benzo Imidazoles is the polyaniline-nano fiber of hinge point.
Wherein, the preparation method of the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end:
A. coupling reaction is blocked
25.11g (0.1mol) 2,5- dichloro is added in the flask with four necks,round bottom equipped with nitrogen protection reflux condensate device As end-capping reagent, 3.317g is added in benzophenone reaction monomers, 2.7308g (0.01mol) 4- bromo rutgers afterwards (0.011mol) nickel chloride bipyridyl makees catalyst, and 21.45g (0.33mol) zinc powder makees reducing agent, 11.54g (0.044mol) three Phenylphosphine makees complexing agent, and reaction dissolvent is made in 250ml water removal dimethyl acetamide (DMAc), and it is small to control 80 DEG C of reaction temperature reactions 20 When after pour into carry out exchange of solvent in 500ml anhydrous methanol while hot, after 6 hours, filter, then wash away zinc powder with dilute hydrochloric acid, finally Remaining triphenylphosphine in being reacted only with massive laundering, 80 DEG C of dryings of vacuum obtain 22.6g rutgers envelope for 12 hours Gather to benzene analog derivative, yield 90% at end.
Block coupling reaction synthetic route are as follows:
B. end group hydrolysis
The first step is added in the flask with four necks,round bottom equipped with nitrogen protection reflux condensate device and reacts obtained product 16g (0.4mol) sodium hydroxide is added in 22.6g, and 120ml tetrahydrofuran, 80ml distilled water is back flow reaction 8 hours, cooling, uses It is 3 that the dilute sulfuric acid of concentration 30%, which adjusts pH value, and heating is boiled to there is powder sample precipitation, with massive laundering to neutrality, after suction filtration 80 DEG C be dried in vacuo 12 hours, obtain 20.34g withThe polyphenyl class blocked for the phthalic acid of substituent group is spread out Biology, yield 90%.Its molecular weight ranges 760g/mol-2553g/mol, degree of polymerization 2-12.
End group hydrolysis synthetic route are as follows:
Embodiment 2:
At room temperature, by molar ratio be 1:1 withIt is blocked for the adjacent dicarboxyl benzene of substituent group Substituted benzene oligomer and 3,3', 5,5'- benzophenone tetramines are added in n,N-Dimethylformamide solution, magnetic agitation 2h, Mixed solution is formed, and is labeled as solution A.
In solution A, suitable PMMA is weighed, is made into the solution that concentration is 40%.Magnetic agitation 1h at room temperature is stood Resulting solution is labeled as B solution by 1h.
B solution will be prepared to be placed in device for spinning, adjusting solidification distance is 16cm and voltage is 25kV, is accessed on wire netting Cathode will be collected into polyaniline-nano Precursors of Fibers on the wire netting as cathode.
Obtained polyaniline-nano Precursors of Fibers is depressurized into 50 degree of drying, 450 DEG C is heated under condition of nitrogen gas and obtains benzo Imidazoles is the polyaniline-nano fiber of hinge point.
Wherein, the preparation method is the same as that of Example 1 for the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end.
Embodiment 3:
At room temperature, by molar ratio be 1:1 withIt is sealed for the adjacent dicarboxyl benzene of substituent group The substituted benzene oligomer at end and 3,3', 4,4'- biphenyl tetramines are added in n-methyl-2-pyrrolidone solution, magnetic agitation 2h, Mixed solution is formed, and is labeled as solution A.
In solution A, suitable PVP (Mr=30000) is weighed, is made into the solution that concentration is 40%.Magnetic force stirs at room temperature 1h is mixed, 1h is stood, resulting solution is labeled as B solution.
B solution will be prepared to be placed in device for spinning, adjusting solidification distance is 20cm and voltage is 20kV, is accessed on wire netting Cathode will be collected into polyaniline-nano Precursors of Fibers on the wire netting as cathode.
Obtained polyaniline-nano Precursors of Fibers is depressurized into 60 degree of drying, 350 DEG C is heated under condition of nitrogen gas and obtains benzo Imidazoles is the polyaniline-nano fiber of hinge point.
Wherein, the preparation method of the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end:
A. coupling reaction is blocked
25.11g (0.1mol) 2,5- dichloro is added in the flask with four necks,round bottom equipped with nitrogen protection reflux condensate device As end-capping reagent, 3.317g is added in methyl benzoate, 2.7308g (0.01mol) 4- bromo rutgers afterwards (0.011mol) nickel chloride bipyridyl makees catalyst, and 21.45g (0.33mol) zinc powder makees reducing agent, 11.54g (0.044mol) three Phenylphosphine makees complexing agent, and reaction dissolvent is made in 250ml water removal dimethyl acetamide (DMAc), and it is small to control 80 DEG C of reaction temperature reactions 20 When after pour into carry out exchange of solvent in 500ml anhydrous methanol while hot, after 6 hours, filter, then wash away zinc powder with dilute hydrochloric acid, finally Remaining triphenylphosphine in being reacted only with massive laundering, 80 DEG C of dryings of vacuum obtain 22.6g rutgers envelope for 12 hours Gather to benzene analog derivative, yield 86% at end.
B. end group hydrolysis
The first step is added in the flask with four necks,round bottom equipped with nitrogen protection reflux condensate device and reacts obtained product 16g (0.4mol) sodium hydroxide is added in 22.6g, and 120ml tetrahydrofuran, 80ml distilled water is back flow reaction 8 hours, cooling, uses It is 3 that the dilute sulfuric acid of concentration 30%, which adjusts pH value, and heating is boiled to there is powder sample precipitation, with massive laundering to neutrality, after suction filtration 80 DEG C be dried in vacuo 12 hours, obtain 20.34g with
For the polyphenyl analog derivative that the phthalic acid of substituent group blocks, yield 88%.Its molecular weight Range 760g/mol-2553g/mol, degree of polymerization 2-12.
End group hydrolysis synthetic route are as follows:
Embodiment 4:
At room temperature, by molar ratio be 1:1 withIt is sealed for the adjacent dicarboxyl benzene of substituent group The substituted benzene oligomer at end and 3,3', 5,5'- benzophenone tetramines are added in n,N-Dimethylformamide solution, magnetic agitation 2h forms mixed solution, and is labeled as solution A.
In solution A, suitable PVP (Mr=30000) is weighed, is made into the solution that concentration is 40%.Magnetic force stirs at room temperature 1h is mixed, 1h is stood, resulting solution is labeled as B solution.
B solution will be prepared to be placed in device for spinning, adjusting solidification distance is 20cm and voltage is 20kV, is accessed on wire netting Cathode will be collected into polyaniline-nano Precursors of Fibers on the wire netting as cathode.
Obtained polyaniline-nano Precursors of Fibers is depressurized into 60 degree of drying, 300 DEG C is heated under condition of nitrogen gas and obtains benzo Imidazoles is the polyaniline-nano fiber of hinge point.
Wherein, the preparation method of the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end is the same as embodiment 3.
Embodiment 5:
At room temperature, by molar ratio be 1:1 withIt is sealed for the adjacent dicarboxyl benzene of substituent group The substituted benzene oligomer at end and 3,3', 5,5'- diphenyl ether tetramines are added in n,N-Dimethylformamide solution, magnetic agitation 2h forms mixed solution, and is labeled as solution A.
In solution A, suitable PVP (Mr=30000) is weighed, is made into the solution that concentration is 40%.Magnetic force stirs at room temperature 1h is mixed, 1h is stood, resulting solution is labeled as B solution.
B solution will be prepared to be placed in device for spinning, adjusting solidification distance is 13cm and voltage is 23kV, is accessed on wire netting Cathode will be collected into polyaniline-nano Precursors of Fibers on the wire netting as cathode.
Obtained polyaniline-nano Precursors of Fibers is depressurized into 40 degree of drying, 420 DEG C is heated under condition of nitrogen gas and obtains benzo Imidazoles is the polyaniline-nano fiber of hinge point.
Wherein, the preparation method of the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end is the same as embodiment 3.
Embodiment 6:
At room temperature, by molar ratio be 1:1 withIt is blocked for the adjacent dicarboxyl benzene of substituent group Substituted benzene oligomer and 3,3', 5,5'- diphenyl ether tetramines are added in n,N-Dimethylformamide solution, magnetic agitation 2h, Mixed solution is formed, and is labeled as solution A.
In solution A, suitable PMMA is weighed, is made into the solution that concentration is 40%.Magnetic agitation 1h at room temperature is stood Resulting solution is labeled as B solution by 1h.
B solution will be prepared to be placed in device for spinning, adjusting solidification distance is 8cm and voltage is 17kV, is accessed on wire netting Cathode will be collected into polyaniline-nano Precursors of Fibers on the wire netting as cathode.
Obtained polyaniline-nano Precursors of Fibers is depressurized into 40 degree of drying, 500 DEG C is heated under condition of nitrogen gas and obtains benzo Imidazoles is the polyaniline-nano fiber of hinge point.
Wherein, the preparation method is the same as that of Example 1 for the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end.
Non-woven cloth is made using fusion method as raw material in the polyaniline-nano fiber being prepared using embodiment 1-6.Specific packet Containing following steps:
Melt simultaneously force feed melt to polymer chips using screw extruder;Polymer melt enter spinneret die it It is preceding to be filtered through multilayer detailed catalogue metallic sieve;Gear wheel metering pump carries out melt-stoichiometry, and high polymer molten is sent after accurately measuring to molten Jet mould head;After melt is transported to die head, it is evenly dispersed by runner to each spinneret orifice, and sprayed through spinneret orifice;From mould While the melt stream generation extruding that head spinneret orifice squeezes out swells, by the drawing-off of two sides high velocity heated air streams, it is in viscosity flow The melt stream of state is drawn and attenuated rapidly, meanwhile, the air at room temperature of two sides mixes drawing-off stream of hot air, cools and solidifies melt stream Forming forms superfine fibre;Superfine fibre through drawing-off and cooling and solidifying blows to solidifying lace curtaining or rolling under the action of attenuating blast Cylinder, fiber are collected on solidifying lace curtaining or roller, and nano-fiber for production of non-woven is formed.
Comparative example 1:
At room temperature, polystyrene is added in n,N-Dimethylformamide solution, forms magnetic agitation 2h, shape At 45% mixed solution, and it is labeled as solution A.
In solution A, suitable PVP (Mr=30000) is weighed, is made into the solution that concentration is 30%.Magnetic force stirs at room temperature 1h is mixed, 1h is stood, resulting solution is labeled as B solution.
B solution will be prepared to be placed in device for spinning, adjusting solidification distance is 14cm and voltage is 21kV, is accessed on wire netting Cathode will be collected into polyaniline-nano Precursors of Fibers on the wire netting as cathode.
Obtained polyaniline-nano Precursors of Fibers is depressurized into 40 degree of drying, 420 DEG C is heated under condition of nitrogen gas and is prepared Nanofiber.
Performance test:
1. fibre diameter measures
Pattern and fibre diameter use scanning electron microscope (VEGA3LMU, Tescan company of Czech) to carry out observation survey It is fixed;
2. the measurement of the tensile strength of fibre single thread (measurement standard uses GB 9997-88)
It is measured, the result of every kind of sample using JQ03new type Miniature tension instrument (upper marine morning Digital Equipment Co., Ltd) It is obtained by the average value of 10 this group of samples
3. the measurement that fibre single thread is broken percentage of elongation (measurement standard uses GB 9997-88)
It is measured with the miniature control electronic universal tester of CMT8102 (Shenzhen SANS material tests Co., Ltd);
4. the measurement of Young's modulus
It is measured using YMC-1 measure apparatus of youngs modulus (Changchun Great Wall instruments used for education Co., Ltd).
5. the measurement of electro spinning nano fiber non-woven cloth fracture percentage of elongation
It is measured with the miniature control electronic universal tester of CMT8102 (Shenzhen SANS material tests Co., Ltd);
6. the measurement of electro spinning nano fiber non-woven cloth tensile strength
It is measured with the miniature control electronic universal tester of CMT8102 (Shenzhen SANS material tests Co., Ltd);
7. the measurement of electro spinning nano fiber non-woven cloth Young's modulus
It is measured using YMC-1 measure apparatus of youngs modulus (Changchun Great Wall instruments used for education Co., Ltd).
8. the measurement of electro spinning nano fiber non-woven cloth thermal decomposition temperature
It is measured with WRT-3P thermal gravimetric analyzer (TGA) (Shanghai Precision Scientific Apparatus Co., Ltd);
9. the measurement of the hot glass transition temperature of electro spinning nano fiber non-woven cloth
It is to be measured using Diamond Dynamic Mechanical Analyzer (DMA) (Perkin-Elmer, the U.S.);
Above-mentioned test result is shown in Table 1 embodiment the performance test results.
1 embodiment the performance test results of table
Through embodiment compared with comparative example, polyphenylene derivatives nanofiber made from method provided by the invention is used With better tensile strength, toughness and modulus, while there is moderate elongation.Using polyaniline-nano produced by the present invention Fiber non-woven equally has better tensile strength and elongation at break, while having higher thermal decomposition temperature, has Certain high temperature resistance, thus provide advantageous effects of the invention.Electrospinning high-performance polyphenyl of the present invention spreads out The preparation method of biological nano fiber is simple to operate, and prepared polyphenylene derivatives nanofiber can be widely used in evil On chemical industry equipment, aerospace equipment, high-speed cruising weapon under the conditions of bad, gather made from method provided by the invention since this is used Benzene derivative nanofiber has certain high temperature resistance, therefore may be used also using the polyphenylene derivatives nanofiber that this method obtains For High temperature ion exchanger resin.

Claims (9)

1. a kind of preparation method of electrospinning high-performance polyphenylene derivatives nanofiber, which comprises the following steps:
(1) the substituted benzene oligomer of adjacent dicarboxyl benzene sealing end and tetramines aromatic monomer are dissolved in solvent, it is molten that presoma is made Liquid;
(2) it in the precursor solution described in step (1), is added into silk agent, forms spinning mixed solution, pass through method of electrostatic spinning Form blended nanofiber presoma;
(3) it after blended nanofiber presoma described in step (2) being dried, is heat-treated, obtains polyphenylene derivatives Nanofiber;
The general structure of the substituted benzene oligomer of the adjacent dicarboxyl benzene sealing end are as follows:
Wherein R1Selected from such as flowering structure:
CH3O-、
In any one.
2. the preparation method of electrospinning high-performance polyphenylene derivatives nanofiber as described in claim 1, which is characterized in that described Tetramines aromatic general structure are as follows:
Wherein R2Selected from such as flowering structure:
In any one.
3. the preparation method of electrospinning high-performance polyphenylene derivatives nanofiber as described in claim 1, which is characterized in that described Be selected from silk agent: the combination of one or both of PVP and PMMA.
4. the preparation method of electrospinning high-performance polyphenylene derivatives nanofiber as described in claim 1, which is characterized in that described Solvent be selected from: n,N-Dimethylformamide, N, N- diethylformamide, n,N-dimethylacetamide, N, N- diethyl acetyl Amine, N, N- Valpromide, N, N- dimethyl benzamide, n-methyl-2-pyrrolidone, N- ethyl-2-pyrrolidone, N- Isopropyl -2-Pyrrolidone, N- isobutyl group -2-Pyrrolidone, N- n-propyl -2-Pyrrolidone, N- normal-butyl -2- pyrrolidines Ketone, n-cyclohexyl-2-pyrrolidone, N- methyl -3- N-methyl-2-2-pyrrolidone N, N- ethyl -3- methyl-pyrrolidon, N- first Base -3,4,5- trimethyl -2-Pyrrolidone, N- methyl -2- piperidones, N- ethyl -2- piperidones, N- isopropyl -2- piperidones, N- methyl -6- methyl -2- piperidones, N- methyl -3- ethyl piperidine ketone, dimethyl sulfoxide, diethyl sulfoxide, sulfolane, hexichol Any one or a few combination in sulfone.
5. the preparation method of electrospinning high-performance polyphenylene derivatives nanofiber as described in claim 1, which is characterized in that described Under the conditions of heat treatment includes: existing for the inert gas, it is heated to 300 DEG C~500 DEG C.
6. the preparation method of electrospinning high-performance polyphenylene derivatives nanofiber as claimed in claim 5, which is characterized in that described Under the conditions of heat treatment includes: existing for the inert gas, it is heated to 350 DEG C~450 DEG C.
7. the preparation method of electrospinning high-performance polyphenylene derivatives nanofiber as claimed in claim 6, which is characterized in that described Under the conditions of heat treatment includes: existing for the inert gas, it is heated to 420 DEG C.
8. the preparation method of the electrospinning high-performance polyphenylene derivatives nanofiber as described in claim 6-7 any one, special Sign is, any one of the inert gas in nitrogen and argon gas.
9. a kind of polyphenylene derivatives nanofiber, which is characterized in that prepared using method described in claim 1-8 any one It obtains.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898298A (en) * 2003-12-26 2007-01-17 新日铁化学株式会社 Aromatic polyamic acid and polyimide
CN105714406A (en) * 2015-09-29 2016-06-29 江西师范大学 Molecule assembling-based preparation method of polypyrrolone/nylon composite fiber composite material
CN105709611A (en) * 2015-09-29 2016-06-29 江西师范大学 Polypyrrolone/polyimide composite porous catalytic film and preparation method thereof
CN105714472A (en) * 2015-09-29 2016-06-29 江西师范大学 Polypyrrolone/sulfonated polyphenylene oxide composite film and preparation method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898298A (en) * 2003-12-26 2007-01-17 新日铁化学株式会社 Aromatic polyamic acid and polyimide
CN105714406A (en) * 2015-09-29 2016-06-29 江西师范大学 Molecule assembling-based preparation method of polypyrrolone/nylon composite fiber composite material
CN105709611A (en) * 2015-09-29 2016-06-29 江西师范大学 Polypyrrolone/polyimide composite porous catalytic film and preparation method thereof
CN105714472A (en) * 2015-09-29 2016-06-29 江西师范大学 Polypyrrolone/sulfonated polyphenylene oxide composite film and preparation method

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