Replace the non bridged N- arylamino monotitanocene and application thereof, which belongs to the technical field of catalysts for olefin polymerization. Compounds as catalysts include methyl N-, -2, 6- two, isopropyl - cyclopentadienyl - two, titanium chloride, etc.. The preparation of metal salts with N- substituted aromatic amines and the preparation of metallocene chlorides were made in two steps. The use of the compounds of the invention is used as a catalyst for olefin polymerization to achieve ethylene homopolymerization or ethylene copolymerization with other olefins. The invention is used for ethylene polymerization in maintained high activity can be obtained under the condition of high molecular weight linear and ultra high molecular weight polyethylene; for the copolymerization of ethylene and 1-hexene 1- can obtain high molecular weight copolymer maintains high activity, can adjust very good catalytic effect of comonomer insertion rate change of the initial concentration of CO monomer.
【技术实现步骤摘要】
本专利技术属于烯烃聚合催化剂及其制备与应用的
,具体的来讲,涉及新型非桥联取代环戊二烯基N-取代芳胺基茂金属化合物作烯烃聚合催化剂。
技术介绍
近年来,在烯烃聚合催化剂研究开发领域中,茂金属催化剂受到广泛关注。与传统齐格勒-纳塔催化剂相比,茂金属催化剂具有很多优点,如催化活性高,可通过改变催化剂的结构调控聚烯烃的结构、分子量及其分布、共单体含量等,进而提高聚烯烃的性能。日本化学家Kotohiro Nomura报道了一类非桥联芳氧基单茂钛催化剂(结构如下)。权利要求1. 一种非桥联N-取代芳胺基单茂钛化合物,结构表达式如下2.根据权利要求1所述的非桥联N-取代芳胺基单茂钛化合物,其特征在于,所述的非桥联N-取代芳胺基单茂钛化合物是N-甲基-2,6- 二异丙基苯胺-环戊二烯基-二氯化钛、N-苄基-2,6- 二异丙基-苯胺环戊二烯基-二氯化钛、N-甲基-2,6- 二甲基苯胺-环戊二烯基-二氯化钛、N-甲基-2,6- 二异丙基苯胺-五甲基环戊二烯基-二氯化钛、N-甲基-2,6- 二甲基苯胺-五甲基环戊二烯基-二氯化钛、N-甲基-2,6- 二乙基苯胺-环戊二烯基-二 ...
【技术保护点】
1.一种非桥联N-取代芳胺基单茂钛化合物,结构表达式如下:其中Cp′为取代的环戊二烯基,取代的茚基或芴基;R为烷基或苄基;R1、R2、R3为烷基、芳基或氢。
【技术特征摘要】
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