A functionalized elastomer is disclosed having the formula (P-B n ) q -X, where P is a polydiene segment, B is a styrenic monomer residue, n is the number of styrenic monomer residues, B n is a polystyrenic segment; X is a multifunctional polymerization terminator residue, and q is the number of (P-B n ) chains coupled to X. Also, a method of making a functionalized elastomer is disclosed comprising the steps of: polymerizing a diene based monomer in the presence of an anionic polymerization initiator to produce a polydiene anionic living polymer; further polymerizing the polydiene anionic living polymer with from 1 to 10 equivalents of a styrenic monomer per equivalent of initiator to produce a polydiene-polystyrenic anionic living polymer; and terminating the polydiene-polystyrenic anionic living polymer with a multifunctional terminator.


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    Title :

    Functionalized polymer, rubber composition and pneumatic tire


    Contributors:
    MA LIQING (author)

    Publication date :

    2017-02-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / 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



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