The invention relates to the field of polymers, and discloses a monovinylarene-conjugated diene polymer as well as a preparation method and application thereof. The monovinylarene-conjugated diene polymer contains 8-42 wt% of an oligomer and 58-92 wt% of a high polymer, the oligomer is of a linear structure, and the high polymer contains a linear high polymer and a coupling high polymer which are formed by monovinylarene-conjugated diene polymer chains. The DIN abrasion of vulcanized rubber of the monovinylarene-conjugated diene polymer is less than 100 mm < 3 >, the content of structural units derived from monovinylarene in the polymer is 5-20 wt%, the content of structural units derived from conjugated diene in the polymer is 80-95 wt%, and the content of structural units derived from conjugated diene in the polymer is 5-20 wt%. And the tail ends of the oligomer and the linear high polymer have a structure closed by a silicon-containing compound. The high-molecular-weight polymer and the low-molecular-weight polymer are moderate in content, and the high-molecular-weight polymer has excellent wear resistance and dynamic performance.

    本发明涉及聚合物领域,公开了一种单乙烯基芳烃‑共轭二烯烃聚合物及其制备方法和应用。该单乙烯基芳烃‑共轭二烯烃聚合物含有8‑42重量%的低聚物和58‑92重量%的高聚物,低聚物为线型结构,高聚物含有单乙烯基芳烃‑共轭二烯烃聚合链构成的线性高聚物和偶联高聚物,且单乙烯基芳烃‑共轭二烯烃聚合物的硫化橡胶的DIN磨耗为100mm3以下,聚合物中的来自单乙烯基芳烃的结构单元的含量为5‑20重量%,来自共轭二烯烃的结构单元的含量为80‑95重量%,并且,所述低聚物和所述线性高聚物的末端具有被含硅化合物封闭的结构。本发明的聚合物的高、低分子量聚合物的含量适中,具有优异的耐磨性能和动态性能。


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    Title :

    Monovinylarene-conjugated diene polymer as well as preparation method and application thereof


    Additional title:

    单乙烯基芳烃-共轭二烯烃聚合物及其制备方法和应用


    Contributors:
    JIANG KE (author) / XU LIN (author) / WU WEIDONG (author) / WANG CHAO (author)

    Publication date :

    2023-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



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