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    • 10. 发明申请
    • PROCESSES FOR THE PREPARATION OF HIGH-CIS POLYDIENES
    • 制备高分子聚合物的方法
    • WO2013130522A1
    • 2013-09-06
    • PCT/US2013/027905
    • 2013-02-27
    • BRIDGESTONE CORPORATIONQIN, ZengquanMCCAULEY, Kevin M.LUO, Steven
    • QIN, ZengquanMCCAULEY, Kevin M.LUO, Steven
    • C08F36/04C08F36/06C08F2/04C08F4/52
    • C08F136/06C08F4/545C08F36/06C08F4/52
    • Disclosed herein are solution polymerization processes for producing a high-cis polydiene. The processes include polymerizing at least one conjugated diene monomer in an organic solvent in the presence of at least one thiol compound and a lanthanide-based catalyst composition to produce a polydiene having a cis-1,4-linkage content of 90-99%. The at least one thiol compound is represented by the general formula R-S-H, where R is a hydrocarbyl group or a substituted hydrocarbyl group. The lanthanide-based catalyst composition comprises (a) a lanthanide compound, (b) an alkylating agent, and (c) a halogen source, where (c) may optionally be provided by (a), (b), or both (a) and (b). The molar ratio of the at least one thiol compound to the lanthanide compound used in the polymerization process ranges from 0.01:1 to 100:1. Improved solution polymerization processes regarding the same are also disclosed herein.
    • 本文公开了用于制备高顺式聚二烯的溶液聚合方法。 所述方法包括在至少一种硫醇化合物和镧系元素基催化剂组合物的存在下,在有机溶剂中聚合至少一种共轭二烯单体以制备顺式-1,4-键含量为90-99%的聚二烯。 所述至少一种硫醇化合物由通式R-S-H表示,其中R是烃基或取代的烃基。 镧系元素基催化剂组合物包含(a)镧系元素化合物,(b)烷基化剂和(c)卤素源,其中(c)可任选地由(a),(b)或两者(a )和(b)。 在聚合过程中使用的至少一种硫醇化合物与镧系元素化合物的摩尔比为0.01:1至100:1。 关于该方法的改进的溶液聚合方法也在本文中公开。