JPH0748401A - Modification of sodium carboxymethylcellulose - Google Patents
Modification of sodium carboxymethylcelluloseInfo
- Publication number
- JPH0748401A JPH0748401A JP21521293A JP21521293A JPH0748401A JP H0748401 A JPH0748401 A JP H0748401A JP 21521293 A JP21521293 A JP 21521293A JP 21521293 A JP21521293 A JP 21521293A JP H0748401 A JPH0748401 A JP H0748401A
- Authority
- JP
- Japan
- Prior art keywords
- viscosity
- cmc
- aqueous solution
- value
- pvi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000001768 carboxy methyl cellulose Substances 0.000 title claims abstract description 14
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 title claims abstract description 14
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 title claims abstract description 14
- 230000004048 modification Effects 0.000 title 1
- 238000012986 modification Methods 0.000 title 1
- 239000007864 aqueous solution Substances 0.000 claims abstract description 19
- 230000005865 ionizing radiation Effects 0.000 claims abstract description 12
- 230000001678 irradiating effect Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 6
- 229940063834 carboxymethylcellulose sodium Drugs 0.000 claims description 2
- 230000009974 thixotropic effect Effects 0.000 abstract description 9
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 31
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 31
- 230000007423 decrease Effects 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006266 etherification reaction Methods 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 231100000987 absorbed dose Toxicity 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229920003123 carboxymethyl cellulose sodium Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、捺染粘性指数（以下Ｐ
ＶＩ値という）すなわち揺変性（チクソトロピー性）の
高い低粘度カルボキシメチルセルロースナトリウム（以
下ＣＭＣと言う）を得るための改質方法に関するもので
ある。BACKGROUND OF THE INVENTION The present invention relates to a printing viscosity index (hereinafter referred to as P
The present invention relates to a modification method for obtaining low-viscosity sodium carboxymethyl cellulose (hereinafter referred to as CMC) having a high VI value), that is, thixotropic (thixotropic) property.
【０００２】[0002]
【従来の技術】ＣＭＣの水溶液は揺変性（チクソトロピ
ー性）を持ち、この性質は粘度が低くなるほど小さくな
るという性質を持っているが、例えば、食品添加剤とし
てゼリーのゲル強度増強用にＣＭＣを使用する場合、揺
変性の大きい高粘度ＣＭＣは食感的に好ましくないの
で、低粘度でありながら揺変性の大きいＣＭＣが望まれ
ている。2. Description of the Related Art An aqueous solution of CMC has thixotropic properties (thixotropic properties), and this property becomes smaller as the viscosity becomes lower. For example, CMC is used as a food additive to enhance gel strength of jelly. When used, high-viscosity CMC having large thixotropy is not preferable in terms of texture, and therefore CMC having low viscosity and large thixotropy is desired.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな揺変性の高い低粘度ＣＭＣを製造するにあっては、
低粘度ＣＭＣの固形分濃度を高めても揺変性は高まらな
いというところから、低粘度ＣＭＣの揺変性を高める工
夫として、セルロースのカルボキシメチル化反応方法
の検討、低重合セルロースの採用、カルボキシメチ
ル化時の添加剤の検討等が行なわれたが、において
は生産コスト面、生産の非効率化等の問題があり、で
は必然的に添加剤の影響が現われる等の問題があり、い
ずれも採用し難い状況である。However, in producing such a low-viscosity CMC having high thixotropy,
Since thixotropy does not increase even if the solid content concentration of low-viscosity CMC is increased, as a device to enhance thixotropy of low-viscosity CMC, examination of carboxymethylation reaction method of cellulose, adoption of low-polymerized cellulose, carboxymethylation However, there were problems such as production cost and inefficiency in production, and there was a problem that the influence of additives inevitably appeared in. This is a difficult situation.
【０００４】[0004]
【課題を解決するための手段】この発明は、このような
従来の問題点に着目してなされたものであり、２％水溶
液粘度５〜５０ｍｐａ・ｓの低粘度ＣＭＣでは簡便な方
法で揺変性すなわちＰＶＩ値を大きくする事ができなか
ったが、高粘度ＣＭＣは一般に揺変性すなわちＰＶＩ値
が高い事より、この特性をそこなう事なく、又簡便な方
法で低粘度ＣＭＣを得る方法を検討した結果、電離性放
射線又は紫外線を照射することにより、前記特性を持っ
たＣＭＣが得られることを見出した。すなわち、２％水
溶液粘度が１０００〜１０００００ｍｐａ・ｓ、かつＰ
ＶＩ値が０．５以下のカルボキシメチルセルロースナト
リウムを２％水溶液粘度が５〜５０ｍｐａ・ｓ、かつＰ
ＶＩ値が０．５以下のカルボキシメチルセルロースナト
リウムに改質するにおいて、２％水溶液粘度が１０００
〜１０００００ｍｐａ・ｓ、かつＰＶＩ値が０．５以下
のカルボキシメチルセルロースナトリウムに電離性放射
線または紫外線を照射することを特徴とするカルボキシ
メチルセルロースナトリウムの改質方法である。The present invention has been made by paying attention to such conventional problems, and a low-viscosity CMC having a 2% aqueous solution viscosity of 5 to 50 mpa.s is thixotropic by a simple method. That is, although the PVI value could not be increased, the high viscosity CMC generally has a thixotropic property, that is, a high PVI value, and as a result of studying a method of obtaining a low viscosity CMC without impairing this property, It was found that a CMC having the above characteristics can be obtained by irradiating with ionizing radiation or ultraviolet rays. That is, the viscosity of a 2% aqueous solution is 1000 to 100000 mpa · s, and P
Carboxymethylcellulose sodium having a VI value of 0.5 or less has a 2% aqueous solution viscosity of 5 to 50 mpa · s and P
When modified into sodium carboxymethyl cellulose having a VI value of 0.5 or less, the viscosity of a 2% aqueous solution is 1000
It is a method for modifying sodium carboxymethylcellulose, which comprises irradiating ionizing radiation or ultraviolet light to sodium carboxymethylcellulose having a PVI value of ˜100,000 mpa · s and 0.5 or less.
【０００５】（手段を構成する要件）揺変性とＰＶＩ値
は基本的に同じ性質を表す尺度であり、ＰＶＩ値が大き
ければ揺変性も大きいのであり、本発明はＣＭＣの揺変
性の評価をＰＶＩ値の評価に置き換えて成されたもので
ある。本発明に使用する高粘度ＣＭＣは、２％水溶液粘
度が１０００〜１０００００ｍｐａ・ｓかつＰＶＩ値が
０．５以下のＣＭＣが使用される。ＰＶＩ値が０．５を
越えるとゲル強度が弱くなるためゼリー等へ利用した
時、商品価値が低下する。又そのＣＭＣのエーテル化度
は０．６〜１．５程度のものが使用される。(Requirements Constituting Means) The thixotropy and the PVI value are basically the same property scale, and the larger the PVI value, the greater the thixotropy. The present invention evaluates the thixotropy of CMC by PVI. It was made by replacing the evaluation of the value. As the high-viscosity CMC used in the present invention, CMC having a 2% aqueous solution viscosity of 1000 to 100000 mpa · s and a PVI value of 0.5 or less is used. When the PVI value exceeds 0.5, the gel strength becomes weak, so that the commercial value is lowered when it is used for jelly or the like. The CMC having an etherification degree of about 0.6 to 1.5 is used.
【０００６】ＣＭＣの水溶液粘度及びＰＶＩ値の測定方
法を以下に示す。水溶液粘度 ＣＭＣの２％（重量）水溶液を作り、水溶液を均一化し
て２５℃にてＢＭ型粘度計（東京計器製）で粘度測定を
する（ｍｐａ・ｓ）。The methods for measuring the aqueous solution viscosity and PVI value of CMC are shown below. Aqueous solution viscosity A 2% (weight) aqueous solution of CMC is prepared, the aqueous solution is homogenized, and the viscosity is measured with a BM type viscometer (manufactured by Tokyo Keiki) at 25 ° C (mpa · s).
【０００７】ＰＶＩ値 東京計器製ＢＨ型粘度計を用いて下記の糊液粘度を測定
し下記の計算式によって求める。１００００±５００ｍ
ｐａ・ｓの糊液粘度水溶液を調整してよくかきまぜた後
ラップでカバーして２５℃恒温器中で一夜放置する。次
に恒温器中より取り出しガラス棒にて充分に撹拌する。
次にＢＨ型粘度計、ローターＮｏ５を用いて変速ツマミ
で２ｒｐｍ、２０ｒｐｍと回転数を変化させ、それぞれ
の粘度を測定して下記式にてＰＶＩ値を算出する。この
数値が小さいほどチキソトロピー性（揺変性）が大きい
ことを示す。 PVI value The viscosity of the following paste liquid is measured using a BH type viscometer manufactured by Tokyo Keiki Co., Ltd. and determined by the following calculation formula. 10,000 ± 500m
After adjusting the viscosity of the paste solution of pa · s and stirring it well, cover it with wrap and leave it in a thermostat at 25 ° C overnight. Then, remove from the thermostat and stir thoroughly with a glass rod.
Next, using a BH type viscometer and a rotor No. 5, the number of revolutions was changed to 2 rpm and 20 rpm with a shift knob, the respective viscosities were measured, and the PVI value was calculated by the following formula. The smaller this value, the greater the thixotropic property (thixotropic).
【０００８】ＰＶＩ値＝２０ｒｐｍでの粘度測定値／２
ｒｐｍでの粘度測定値PVI value = viscosity measured value at 20 rpm / 2
Viscosity measurement value at rpm
【０００９】電離性放射線または紫外線を照射するに
は、高粘度ＣＭＣの粉末品を空気を除去した状態で透明
容器に入れ、電離性放射線または紫外線を照射する。電
離性放射線としては、電子線、γ線、Ｘ線などが用いら
れる。電離性放射線の照射量は、吸収線量で０．５〜２
０Ｍｒａｄの範囲が適当である。０．５Ｍｒａｄよりも
小さい場合は、粘度低下が少なくＰＶＩ値の変化もな
い。又２０Ｍｒａｄよりも大きいと極端な粘度低下が生
じ、かつＰＶＩ値も低下してしまう。In order to irradiate with ionizing radiation or ultraviolet rays, a powdered product of high viscosity CMC is put in a transparent container in a state where air is removed and irradiated with ionizing radiation or ultraviolet rays. As the ionizing radiation, an electron beam, γ ray, X ray or the like is used. The dose of ionizing radiation is 0.5 to 2 in terms of absorbed dose.
A range of 0 Mrad is suitable. When it is less than 0.5 Mrad, there is little decrease in viscosity and there is no change in PVI value. On the other hand, if it is larger than 20 Mrad, the viscosity is extremely lowered and the PVI value is also lowered.
【００１０】電離性放射線または紫外線照射後は、２％
水溶液粘度が５〜５０ｍｐａ・ｓ、かつＰＶＩ値が０．
５以下のＣＭＣが得られる。このように本発明で得た低
粘度ＣＭＣと通常の低粘度ＣＭＣのＰＶＩ値を比較する
と、本発明品の方がＰＶＩ値が大きく、電離性放射線ま
たは紫外線照射前の高粘度ＣＭＣのＰＶＩ値に近い数値
となっている。2% after irradiation with ionizing radiation or ultraviolet rays
The aqueous solution has a viscosity of 5 to 50 mpa · s and a PVI value of 0.
A CMC of 5 or less is obtained. Thus, when the PVI values of the low-viscosity CMC obtained in the present invention and the ordinary low-viscosity CMC are compared, the PVI value of the product of the present invention is higher, and the PVI value of the high-viscosity CMC before irradiation with ionizing radiation or ultraviolet rays is higher. It is a close number.
【００１１】[0011]
【作用】この理由は定かでないが、高分子に電離性放射
線または紫外線を照射する事による解重合で重合度が低
下する一方、部分的には架橋重合が生じ、低重合度分子
に一部の高重合分子が混在し、低粘度ＣＭＣの分子のネ
ットワーク中に、より密な高粘度ＣＭＣの分子がからみ
合い全体に丈夫なゲル状態を形成するものと推定され
る。Function The reason for this is not clear, but the degree of polymerization is lowered by depolymerization by irradiating the polymer with ionizing radiation or ultraviolet rays, while on the other hand, cross-linking polymerization partially occurs, so that a part of the low-polymerization molecule is partially polymerized. It is presumed that densely polymerized molecules of high viscosity CMC are entangled in a network of molecules of low viscosity CMC, in which highly polymerized molecules are mixed, to form a tough gel state throughout.
【００１２】[0012]
【実施例】次に本発明を実施例にて詳細に説明する。実施例１〜３及び参考例１〜３ エーテル化度の異なる各カルボキシメチルセルロースナ
トリウム約２０ｇを１０ｃｍ2 のポリシールに入れ、中
を窒素置換し、ガラス容器に入れ、γ線を照射した。照
射後のＣＭＣの２％水溶液粘度とＰＶＩ値を測定し、そ
の結果を表１に示した。又比較のため通常の低粘度ＣＭ
Ｃと照射前高粘度ＣＭＣの２％水溶液粘度とＰＶＩ値も
表１に併せて示した。EXAMPLES The present invention will now be described in detail with reference to Examples. Examples 1 to 3 and Reference Examples 1 to 3 About 20 g of each sodium carboxymethyl cellulose having a different degree of etherification was put into a 10 cm 2 policyl, the inside was replaced with nitrogen, and the glass was placed in a glass container and irradiated with γ rays. After irradiation, the viscosity of a 2% aqueous solution of CMC and the PVI value were measured, and the results are shown in Table 1. Ordinary low viscosity CM for comparison
Table 1 also shows the viscosity of C and a 2% aqueous solution of high viscosity CMC before irradiation and the PVI value.
【００１３】[0013]
【表１】 [Table 1]
【００１４】ＰＶＩ値は通常粘度が低下することで小さ
くなるが、実施例のごとく照射後のＰＶＩ値の変化はほ
とんどなかった。The PVI value usually decreases as the viscosity decreases, but there was almost no change in the PVI value after irradiation as in the examples.
【００１５】[0015]
【発明の効果】高粘度ＣＭＣに電離放射線または紫外線
を照射することにより高粘度ＣＭＣの持っているＰＶＩ
値すなわち揺変性がそこなわれる事なく、低粘度ＣＭＣ
が得られる。それ故に本発明で得られるＣＭＣは一般工
業用、食品用、医薬用、香粧品用糊剤、ゲル化剤、保型
剤等として有望な用途を有する。The PVI possessed by the high-viscosity CMC by irradiating the high-viscosity CMC with ionizing radiation or ultraviolet rays.
Value, that is, thixotropy is not damaged, low viscosity CMC
Is obtained. Therefore, the CMC obtained in the present invention has promising uses as a general industrial use, food use, pharmaceutical use, scent agent for cosmetics, gelling agent, shape-retaining agent and the like.
Claims (1)
０ｍｐａ・ｓ、かつ捺染粘性指数が０．５以下のカルボ
キシメチルセルロースナトリウムを２％水溶液粘度が５
〜５０ｍｐａ・ｓ、かつ捺染粘性指数が０．５以下のカ
ルボキシメチルセルロースナトリウムに改質するにおい
て、２％水溶液粘度が１０００〜１０００００ｍｐａ・
ｓ、かつ捺染粘性指数が０．５以下のカルボキシメチル
セルロースナトリウムに電離性放射線または紫外線を照
射することを特徴とするカルボキシメチルセルロースナ
トリウムの改質方法。1. A 2% aqueous solution has a viscosity of 1,000 to 10,000.
Sodium carboxymethyl cellulose having 0 mpa · s and a printing viscosity index of 0.5 or less has a 2% aqueous solution viscosity of 5
˜50 mpa · s and printing viscosity index of 0.5 or less is modified into sodium carboxymethylcellulose sodium, the viscosity of 2% aqueous solution is 1000 to 100000 mpa · s.
A method for modifying sodium carboxymethylcellulose, which comprises irradiating ionizing radiation or ultraviolet light to sodium carboxymethylcellulose having a printing viscosity index of 0.5 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21521293A JPH0748401A (en) | 1993-08-05 | 1993-08-05 | Modification of sodium carboxymethylcellulose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21521293A JPH0748401A (en) | 1993-08-05 | 1993-08-05 | Modification of sodium carboxymethylcellulose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0748401A true JPH0748401A (en) | 1995-02-21 |
Family
ID=16668558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21521293A Pending JPH0748401A (en) | 1993-08-05 | 1993-08-05 | Modification of sodium carboxymethylcellulose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748401A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6383344B1 (en) * | 2000-07-19 | 2002-05-07 | Genzyme Corporation | Molecular weight reduction of polymer using irradiation treatment |
| JP2008094951A (en) * | 2006-10-11 | 2008-04-24 | Japan Atomic Energy Agency | Process for producing radiation crosslinked hydrogel |
| WO2011118748A1 (en) * | 2010-03-26 | 2011-09-29 | 日本製紙株式会社 | Method for producing cellulose nanofibers |
| CN108047469A (en) * | 2017-11-29 | 2018-05-18 | 湖北工业大学 | A kind of method that sodium carboxymethylcellulose viscosity is reduced using x ray irradiation x |
| CN109997263A (en) * | 2016-11-25 | 2019-07-09 | 第一工业制药株式会社 | Non-aqueous electrolyte secondary cell negative electrode and non-aqueous electrolyte secondary battery |
| JP2023021640A (en) * | 2021-08-02 | 2023-02-14 | 株式会社Ｎｈｖコーポレーション | Method for producing carboxymethylcellulose gel |
-
1993
- 1993-08-05 JP JP21521293A patent/JPH0748401A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6383344B1 (en) * | 2000-07-19 | 2002-05-07 | Genzyme Corporation | Molecular weight reduction of polymer using irradiation treatment |
| JP2008094951A (en) * | 2006-10-11 | 2008-04-24 | Japan Atomic Energy Agency | Process for producing radiation crosslinked hydrogel |
| WO2011118748A1 (en) * | 2010-03-26 | 2011-09-29 | 日本製紙株式会社 | Method for producing cellulose nanofibers |
| CN109997263A (en) * | 2016-11-25 | 2019-07-09 | 第一工业制药株式会社 | Non-aqueous electrolyte secondary cell negative electrode and non-aqueous electrolyte secondary battery |
| US11424439B2 (en) * | 2016-11-25 | 2022-08-23 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Negative electrode of nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery |
| CN108047469A (en) * | 2017-11-29 | 2018-05-18 | 湖北工业大学 | A kind of method that sodium carboxymethylcellulose viscosity is reduced using x ray irradiation x |
| JP2023021640A (en) * | 2021-08-02 | 2023-02-14 | 株式会社Ｎｈｖコーポレーション | Method for producing carboxymethylcellulose gel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Fekete et al. | Synthesis and characterization of superabsorbent hydrogels based on hydroxyethylcellulose and acrylic acid | |
| Coughlin et al. | Methyl cellulose solutions and gels: Fibril formation and gelation properties | |
| Thuresson et al. | Effect of surfactant on structural and thermodynamic properties of aqueous solutions of hydrophobically modified ethyl (hydroxyethyl) cellulose | |
| Afroz et al. | Synthesis and characterization of polyethylene oxide (PEO)—N, N-dimethylacrylamide (DMA) hydrogel by gamma radiation | |
| EP1384727B2 (en) | Cellulose derivatives having gel-like rheological properties and process for making the same | |
| WO2005000903A1 (en) | Cellulose ethers | |
| CN106188574B (en) | A kind of carboxymethyl curdlan aqueous solution or hydrogel and its preparation method and application | |
| Maswal et al. | Rheological characterization of multi-component hydrogel based on carboxymethyl cellulose: insight into its encapsulation capacity and release kinetics towards ibuprofen | |
| CN1331702A (en) | Reduced molecular weight native gellan gum | |
| Meena et al. | Development of a robust hydrogel system based on agar and sodium alginate blend | |
| Pushpamalar et al. | Preparation of carboxymethyl sago pulp hydrogel from sago waste by electron beam irradiation and swelling behavior in water and various pH media | |
| JPH0748401A (en) | Modification of sodium carboxymethylcellulose | |
| JP2023036623A (en) | Sulfate-esterified cellulose nanofiber and dried product thereof | |
| Rossi et al. | SANS investigation of water adsorption in tunable cyclodextrin-based polymeric hydrogels | |
| Murata et al. | Initial flow of tissue conditioners—influence of composition and structure on gelation | |
| Soullard et al. | Optimization of the methacrylation of carboxymethylcellulose and use for the design of hydrogels and cryogels with controlled structure and properties | |
| Gholamali et al. | pH-sensitive nanocomposite hydrogels based on carboxymethyl chitosan/poly (vinyl alcohol)/ZnO nanoparticle with drug delivery properties | |
| Rodrigues et al. | Acemannan-based films: An improved approach envisioning biomedical applications | |
| Xi et al. | Effects of pullulan on the biomechanical and anti-collapse properties of dicalcium phosphate dihydrate bone cement | |
| JPS62138538A (en) | Hydrous gel composition | |
| Verma et al. | Assessing rheological properties of oxidized Moringa oleifera gum and carboxymethyl chitosan‐based self‐healing hydrogel for additive manufacturing applications | |
| DE69710668T2 (en) | Water-swellable cross-linked polymers, process for the preparation thereof, and measurement method of the pore volume of swollen cross-linked polymers | |
| JP2006348138A (en) | Method for producing sodium carboxymethylcellulose | |
| Kamath et al. | Interpenetrating polymer networks of photocrosslinkable cellulose derivatives | |
| JP3048250B2 (en) | Method for producing high viscosity gelatin |