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    • 1. 发明公开
    • PROCESS FOR THE PREPARATION OF DIENE POLYMERS OR RANDOM VINYL ARENE-DIENE COPOLYMERS
    • 制备二烯聚合物或随机乙烯丙烯 - 二烯共聚物的方法
    • EP3183280A1
    • 2017-06-28
    • EP15759677.6
    • 2015-08-19
    • Versalis S.p.A.
    • SODDU, LucaVALLIERI, AndreaSOLITO, Antonio
    • C08F293/00
    • C08F36/06C08F112/08C08F212/08C08F236/06C08F236/10C08F2438/02C08F2/38
    • Process for the preparation of a diene polymer or a random vinyl arene-diene copolymer comprising anionically (co)polymerising at least one conjugated diene monomer, optionally in the presence of at least one vinyl arene, in the presence of at least one hydrocarbon solvent, at least one lithium-based initiator and at least one organic compound containing at least one nitroxide group having general formula (I) or (II): wherein: R1, R2, R3 and R4, mutually identical or different, represent a hydrogen atom; or are selected from C1-C20, preferably C1-C8, linear or branched alkyl groups optionally containing heteroatoms such as, for example, oxygen, nitrogen,sulphur,optionally substituted cycloalkyl groups, optionally substituted C1-C20, preferably C1-C8 , linear or branched alkoxy groups, optionally substituted aryl groups; -x is an integer ranging from 0 to 7, preferably ranging from 4 to 5; -y is an integer ranging from 1 to 3, preferably ranging from 1 to 2.
    • 用于制备二烯聚合物或无规乙烯基芳烃 - 二烯共聚物的方法,所述共聚物包含在至少一种烃溶剂存在下任选地在至少一种乙烯基芳烃存在下阴离子(共)聚合至少一种共轭二烯单体, 至少一种锂基引发剂和至少一种含有至少一个具有通式(I)或(II)的氮氧自由基的有机化合物:其中:R1,R2,R3和R4相同或不同,表示氢原子; 或选自C 1 -C 20,优选C 1 -C 8,任选含有杂原子的线性或支化烷基,例如氧,氮,硫,任选取代的环烷基,任选取代的C 1 -C 20,优选C 1 -C 8,线性 或支化烷氧基,任选取代的芳基; -x是范围从0到7的整数,优选范围从4到5; -y是1至3的整数,优选1至2的整数。