The invention provides isoprene-styrene-butadiene high styrene rubber containing random gradient sections and a preparation method thereof. The structural formula is [I1->S1-I2/S2-B3] n-Y, wherein Y is Si or Sn, n is a branching degree, and n is larger than or equal to 2.5 and is smaller than or equal to 4. I1->S1 is a polystyrene and polyisoprene gradient section copolymer; I2/S2 is a polystyrene and isoprene random section copolymer; B3 is a butadiene homopolymer; in the structural formula, the mass fraction of the gradient section of the polystyrene and polyisoprene gradient section is 30-70 wt%, the mass fraction of the random section of the polystyrene and polyisoprene gradient section is 25-60 wt%, and the mass fraction of the butadiene homopolymer is 5-10 wt%; the high styrene rubber provided by the invention has the properties of high hardness, high strength, good elasticity and high branching degree, and when being used with a variety of synthetic rubber or natural rubber, the high styrene rubber can improve the rigidity, harness, wear resistance, tear resistance, dielectric properties and the like of a rubber product.


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    Title :

    Star-like high styrene rubber and preparation method thereof


    Contributors:
    SHI GONGCHANG (author) / DONG JING (author) / WANG FENG (author) / YANG QIBO (author) / KANG ANFU (author) / SONG TONGJIANG (author) / GONG GUANGBI (author) / LIANG TAO (author) / ZHENG JUCHENG (author) / LI JING (author)

    Publication date :

    2015-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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




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