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    • 9. 发明授权
    • Norbornene ring-opened polymer hydrogenated product and process for producing same
    • 降冰片烯开环聚合物氢化产物及其制备方法
    • US07608671B2
    • 2009-10-27
    • US10567964
    • 2004-08-12
    • Shigetaka HayanoYasuo Tsunogae
    • Shigetaka HayanoYasuo Tsunogae
    • C08F32/08C08F36/20C08F8/04C08C19/02
    • C08G61/06C08G61/08C08G2261/3324C08G2261/3325C08G2261/418
    • A norbornene ring-opened polymer hydrogenated product having a syndiotactic structure and a process for producing the same are disclosed. The ring-opened polymer hydrogenated product contains a repeating unit originating from a polycyclic norbornene monomer with three or more rings in the polymer repeating units, having a weight average molecular weight of 500 to 1,000,000, and having a racemo diad proportion of 51% or more. The process comprises a step of polymerizing a polycyclic norbornene monomer having three or more rings by solution polymerization using a group 6 transition metal compound with a hydroxyl group-containing aryloxy group or the like bonded thereto as a polymerization catalyst to obtain a ring-opened polymer and a step of hydrogenating double bonds in the main chain of the ring-opened polymer.
    • 公开了具有间同立构结构的降冰片烯开环聚合物氢化物及其制造方法。 开环聚合物氢化物含有在聚合物重复单元中具有三个以上环的多环降冰片烯单体的重复单元,其重均分子量为500〜1,000,000,并且具有51%以上的摩尔二烯比例 。 该方法包括通过溶液聚合将具有三个或更多个环的多环降冰片烯单体用作为聚合催化剂的含有含羟基的芳氧基等的第六族过渡金属化合物聚合,得到开环聚合物 以及在开环聚合物的主链中氢化双键的步骤。