중합체 말단에 알칼리 금속 또는 알칼리 토류 금속을 갖는 공액 디엔계 중합체와, 식 (1)로 나타나는 화합물을 반응시켜 변성 공액 디엔계 중합체를 제조한다. JPEG112022023571488-pct00008.jpg2890R1 및 R2는, 탄소수 20 이하의 하이드로카빌기이다. R3은, 알킬기가 갖는 수소 원자 및 -CH2-의 적어도 1개가, 질소, 인, 산소 및 황으로 이루어지는 군으로부터 선택되는 적어도 1종 이상을 헤테로 원자로서 포함하지만, 질소, 인, 산소 및 황 이외의 헤테로 원자는 포함하지 않는 기로 치환된 탄소수 20 이하의 치환 알킬기이거나, 또는 질소, 인, 산소 및 황으로 이루어지는 군으로부터 선택되는 적어도 1종의 원소를 포함하는 탄소수 20 이하의 1가의 방향족기이다. 단, R3은, 활성 수소를 갖지 않는다. R4는, 탄소수 20 이하의 알칸디일기이다. n은 1 또는 2이다.

    A modified conjugated diene-based polymer is produced by reacting a conjugated diene-based polymer having an alkali metal or an alkali-earth metal at a terminal of the polymer with a compound represented by formula (1). R 1 and R 2 independently represent a hydrocarbyl group having 20 or fewer carbon atoms. R 3 represents a substituted alkyl group having 20 or fewer carbon atoms prepared through substitution of at least one of a hydrogen atom and -CH 2 - of an alkyl group by a group containing only at least one heteroatom selected from the group consisting of nitrogen, phosphorus, oxygen, and sulfur, or a monovalent aromatic group having 20 or fewer carbon atoms and containing at least one element selected from the group consisting of nitrogen, phosphorus, oxygen, and sulfur, with the proviso that R 3 does not have active hydrogen. R 4 represents an alkanediyl group having 20 or fewer carbon atoms. n is 1 or 2


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    Title :

    MODIFIED CONJUGATED DIENE POLYMER METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER POLYMER COMPOSITION CROSSLINKED POLYMER AND TIRE


    Additional title:

    변성 공액 디엔계 중합체, 변성 공액 디엔계 중합체의 제조 방법, 중합체 조성물, 가교 중합체 및 타이어


    Publication date :

    2022-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / B60C VEHICLE TYRES , Fahrzeugreifen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / C08J Verarbeitung , WORKING-UP / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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