Titanium (III) bases and .beta.-diketonate coordinated catalyst
composition for preparing high-syndiotacticity polystyrene and
processes using the same
    1.
    发明授权
    Titanium (III) bases and .beta.-diketonate coordinated catalyst composition for preparing high-syndiotacticity polystyrene and processes using the same 失效
    用于制备高间同立构聚苯乙烯的钛(III)碱和β-二酮配位体配位催化剂组合物及其使用方法

    公开(公告)号:US5756610A

    公开(公告)日:1998-05-26

    申请号:US781705

    申请日:1997-01-10

    CPC分类号: C07F7/006 C08F10/00 C08F12/04

    摘要: A novel titanium (III)-based .beta.-diketonate-coordinated compound is disclosed for catalyzing the polymerization reaction of syndiotactic polystyrenes. The titanium (III)-based compound is represented by the following formula 1: ##STR1## wherein X is a C.sub.1 .about.C.sub.12 alkoxy or amine group, or a halogen atom; R is a C.sub.1 .about.C.sub.12 alkyl, aryl, or alkylsilane group. Preferably, X is N(SiMe.sub.3).sub.2 -- or OMe--, and R is phenyl, methyl, or t-butyl. The titanium (III)-based compounds are prepared by reacting titanium trichloride with diketone and tetrahydrofuran to form an intermediate product, then reacting the intermediate product Ti(AcAc)Cl.sub.2 (THF).sub.2 with either aminosilane or alcohol.

    摘要翻译: 公开了一种新型的基于钛(III)的β-二酮配位化合物,用于催化间同立构聚苯乙烯的聚合反应。 基于钛(III)的化合物由下式1表示:其中X是C 1 -C 12烷氧基或胺基或卤素原子; R是C 1 -C 12烷基,芳基或烷基硅烷基。 优选地,X是N(SiMe 3)2 - 或OMe-,R是苯基,甲基或叔丁基。 基于钛(III)的化合物通过使三氯化钛与二酮和四氢呋喃反应形成中间产物,然后使中间产物Ti(AcAc)Cl 2(THF)2与氨基硅烷或醇反应来制备。