JP5473940B2 - 官能化重合体並びに製造及び使用方法 - Google Patents
官能化重合体並びに製造及び使用方法 Download PDFInfo
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- JP5473940B2 JP5473940B2 JP2010540906A JP2010540906A JP5473940B2 JP 5473940 B2 JP5473940 B2 JP 5473940B2 JP 2010540906 A JP2010540906 A JP 2010540906A JP 2010540906 A JP2010540906 A JP 2010540906A JP 5473940 B2 JP5473940 B2 JP 5473940B2
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- polymer
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- disilylamino
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/42—Introducing metal atoms or metal-containing groups
-
- C—CHEMISTRY; METALLURGY
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- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/30—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
- C08C19/42—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups
- C08C19/44—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
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- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
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- C08L15/00—Compositions of rubber derivatives
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Description
タイヤトレッド等のゴム製品は、例えば、粒状カーボンブラック及びシリカ等の1種以上の補強材を含むエラストマー組成物から作製されることが多い。例えば、「バンダービルドラバーハンドブック(The Vanderbilt Rubber Handbook)」,第13版,1999年,pp.603-04(非特許文献1)を参照されたい。
「重合体」とは、1又は複数のモノマーの重合生成物を意味し、単独重合体、二元共重合体、三元共重合体、四元共重合体などを含み、
「高分子」とは、その構造内に、2又は3以上の重合体鎖を含む化学物質を意味し、
「マー」又は「マー単位」は、単一の反応体分子から誘導される重合体部分(例えば、エチレン・マーが、一般式−CH2CH2−を有する)を意味し、
「二元共重合体」とは、2つの反応体、典型的にはモノマーに由来するマー単位を含む重合体を意味し、ランダム、ブロック、セグメント化、グラフトなどの共重合体を含み、
「共重合体」とは、少なくとも二つの反応体、典型的には単量体から誘導される単量体単位を含む重合体を意味し、二元共重合体、三元共重合体、四元共重合体及び同類のものを含めたものであり、
「(チオ)ケト」とは、ケト又はチオケトを意味し、
「置換」とは、対象となる基の本来の目的の妨げとならないヘテロ原子又は官能部(例えば、ヒドロカルビル基)を含有するものを意味し、
「直接結合した」とは、原子又は基を介在又は挿入しないで、共有結合したことを意味し、
「ポリエン」とは、分子の最も長い部分又は鎖に位置した少なくとも二つの二重結合を有する分子を意味し、特にジエン、トリエン及び同類のものを含めたものであり、
「ポリジエン」とは、1又は複数のジエン由来のマー単位を含む重合体を意味し、
「phr」とは、ゴム100質量部(pbw)当たりのpbwを意味し、
「ラジカル」は、反応の結果としていずれかの原子を得るか失うかにかかわらず、他の分子と反応した後に残存する分子の部分を意味し、
「非配位アニオン」とは、立体障害ゆえに例えば触媒系の活性中心と配位結合を形成しない立体的に嵩高いアニオンを意味し、
「非配位アニオン前駆体」とは、反応条件の下で非配位アニオンを形成できる化合物を意味し、
「末端」は、重合体鎖の末端を意味し、
「末端部分」は、末端に位置した基又は官能部を意味する。
ランタニド化合物に対するアルキル化剤(アルキル化剤/Ln)は、約1:1〜約200:1、好適には約2:1〜約100:1、より好適には約5:1〜約50:1であり、
ランタニド化合物に対するハロゲン含有化合物(ハロゲン原子/Ln)は、約1:2〜約20:1、好適には約1:1〜約10:1、より好適には約2:1〜約6:1であり、
ランタニド化合物に対するアルミノキサン、特にランタニド化合物中のランタニド原子当量に対するアルミノキサン上のアルミニウム原子当量(Al/Ln)は、約50:1〜約50,000:1、好適には約75:1〜約30,000:1、より好適には約100:1〜約1,000:1であり、
ランタニド化合物に対する非配位アニオン又は前駆体(An/Ln)は、約1:2〜約20:1,好適には約3:4〜約10:1、より好適には約1:1〜約6:1である。
(1)インサイチュ 触媒成分を、単量体及び溶媒(又は単にバルク単量体)を含有する溶液に添加する。添加は段階的又は一斉に行ってもよい。後者の場合、アルキル化剤を好適には最初に添加し、順次ランタニド化合物、ニッケル含有化合物(使用する場合)および(使用する場合)ハロゲン含有化合物又は非配位アニオン又は非配位アニオン前駆体が続く。
(2)予備混合 単数又は複数の共役ジエン単量体を導入する前に、成分を、重合系外で、一般に約−20℃〜80℃の温度で混合できる。
(3)単数又は複数の単量体の存在下での予備形成 触媒成分を、少量の単数又は複数の共役ジエン単量体の存在下、約−20℃〜80℃の温度で混合できる。共役ジエン単量体の量は、ランタニド化合物のモル当たり約1〜約500モル、好適には約5〜約250モル、より好適には約10〜約100モルの範囲に及ぶことができる。得られた触媒組成物を重合する単数又は複数の共役ジエン単量体の残分に添加する
(4)二段階法
(a)共役ジエン単量体の不在又は少量の共役ジエン単量体の存在下、アルキル化剤を、ランタニド化合物と約−20℃〜約80℃の温度で混合する。
(b)前述の混合物及び残存する構成成分を段階的又は一斉のいずれの方法で重合する単数又は複数の共役ジエン単量体の残分に投入する(使用する場合、Ni含有化合物はいずれの段階にも含めることができる)。
一以上の触媒成分の溶液を、前述の方法により重合系外で調製する場合、有機溶媒又はキャリヤーを好適には使用する。有用な有機溶媒としては、前述のものが挙げられる。
約5.1gの4,4′−ジアミノベンゾフェノン、10.7gのトリエチルアミン、及び10mLのトルエンを、氷浴で冷却した丸底反応フラスコ中で混合した。この混合物に、トルエン50mL中のトリメチルシリルトリフルオロメタンスルホネート23.5gの溶液を一滴ずつ添加した。
約12.0g 4−アミノベンゾフェノン、13.5g トリエチルアミン、及び15mL トルエン(15mL)を、氷浴で冷却した丸底反応フラスコ中で混合した。この混合物に、トルエン50mL中の29.7gのトリメチルシリルトリフルオロメタンスルホネートの溶液を一滴ずつ添加した。
約10.4gのエピクロロヒドリン及び リチウムビス(トリメチルシリル)アミドの1.0MTHF溶液112mLを、還流冷却器に連結したフラスコ中で混合した。混合物を加熱して、約1時間還流した。
タービン撹拌器ブレードを備え付けた反応器に、1.403kgのヘキサン及びの1,3−ブタジエン20.6(重量)%のヘキサン溶液3.083kgを添加した。
下表にてにまとめられている反応体及び触媒成分の量を使用して、例4の工程を、基本的に繰り返した。
例4の工程を基本的に繰り返した。反応器に、1.526kgのヘキサン及び1,3−ブタジエン18.8(重量)%のヘキサン溶液2.940kgを添加した。
例4の工程を、基本的に繰り返した。反応器に1.512kgのヘキサン及び1,3−ブタジエン21.5(重量)%のヘキサン溶液2.954kgを添加した。
タービン撹拌器ブレードを備え付けた反応器に、5.100kg ヘキサン、1.278kg スチレン溶液(ヘキサン中33.0重量%)、及び1,3−ブタジエン22.0(重量)%のヘキサン溶液7.670kgを添加した。反応器に、11.98mLのn−ブチルリチウム溶液(ヘキサン中1.6M)及び3.95mLの2,2−ビス(2′−テトラヒドロフリル)プロパン溶液(ヘキサン中1.6M)を充填した。反応器のジャケットを加熱し、バッチ温度が50℃に到達したら、反応器のジャケットを冷水で冷却した。
以下に示す処方を用いて、充填材入りの配合物を、例4−10のポリブタジエン及び例11〜13のスチレン/ブタジエン二元共重合体から調製した。量はphrで記載した。
Claims (5)
- 末端に活性のある重合体を、ジシリルアミノ基と、ケト、チオケト、エポキシ及びエピチオから選択される末端に活性のある重合体と反応することが可能な基とを含む化合物と反応させることを含み、前記重合体が、ジエン・マーを含む官能化重合体を提供する方法。
- 前記化合物が、1つより多くのジシリルアミノ基を含み前記1以上のジシリルアミノ基のそれぞれのN原子が、芳香族環のC原子に直接結合している請求項1記載の方法。
- 少なくとも1つの種類の充填材と請求項3記載の重合体とを含む加硫物。
- 請求項4記載の加硫物を含む物品。
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US4476908P | 2008-04-14 | 2008-04-14 | |
US61/044,769 | 2008-04-14 | ||
PCT/US2008/088366 WO2009086477A2 (en) | 2007-12-28 | 2008-12-26 | Functionalized polymer and methods for making and using |
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JP2011508813A (ja) | 2011-03-17 |
KR20100111703A (ko) | 2010-10-15 |
BRPI0821948A2 (pt) | 2011-08-30 |
US8236892B2 (en) | 2012-08-07 |
KR101586100B1 (ko) | 2016-01-15 |
US20100311899A1 (en) | 2010-12-09 |
BRPI0821948B1 (pt) | 2019-08-13 |
CN101945900A (zh) | 2011-01-12 |
ES2429447T3 (es) | 2013-11-14 |
WO2009086477A2 (en) | 2009-07-09 |
CN101945900B (zh) | 2013-03-27 |
RU2010131490A (ru) | 2012-02-10 |
RU2492189C2 (ru) | 2013-09-10 |
EP2231720A4 (en) | 2011-06-22 |
WO2009086477A3 (en) | 2009-09-24 |
EP2231720B1 (en) | 2013-08-14 |
EP2231720A2 (en) | 2010-09-29 |
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