Novel catalyst for hydrogenation of polymer and process for hydrogenating polymer with the catalyst
申请人:JAPAN SYNTHETIC RUBBER CO., LTD.
公开号:EP0339986A1
公开(公告)日:1989-11-02
A hydrogenation catalyst consisting essentially of (A) at least one bis(cyclopentadienyl)titanium compound represented by the formula (1):
wherein R¹ and R², which may be the same or different, represent halogen atoms, hydrocarbon groups, aryloxy groups, alkoxy groups or carbonyl groups, and (B) at least one lithium compound represented by the formula (2):
R³O-Li (2)
wherein R³ represents a hydrocarbon group, or a reaction mixture of an organolithium compound with an alcoholic or phenolic hydroxyl group-containing compound, the (A) component/the (B) component molar ratio being 1/0.5 to 1/20, and optionally (C) at least one reducing organometallic compound selected from the group consisting of aluminum compounds, zinc compounds and magnesium compounds, the (A) component/the (C) component molar ratio being 1/0.5 to 1/20. The above hydrogenation catalyst is effectively applied to the hydrogenation of a polymer having olefinic double bonds to produce a hydrogenated polymer having a high degree of hydrogenation at a high hydrogenation rate with a high reproducibility.
一种氢化催化剂,主要包括(A)至少一种由式(1)代表的双(环戊二烯基)钛化合物:
其中 R¹ 和 R² 可以相同或不同,代表卤素原子、烃基、芳氧基、烷氧基或羰基,以及 (B) 至少一种由式 (2) 代表的锂化合物:
R³O-Li (2)
其中 R³ 代表烃基,或有机锂化合物与含羟基的醇类或酚类化合物的反应混合物,(A) 组分/(B) 组分的摩尔比为 1/0.5 至 1/20,可选 (C) 至少一种还原性有机金属化合物,选自铝化合物、锌化合物和镁化合物组成的组,(A) 组分/(C) 组分的摩尔比为 1/0.5 至 1/20。将上述氢化催化剂有效地应用于具有烯烃双键的聚合物的氢化,可生产出氢化程度高、氢化速率高、重现性高的氢化聚合物。