(ArO)TiR3 complexes for highly syndiospecific styrene polymerization

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	(ArO)TiR3 complexes for highly syndiospecific styrene polymerization
	Xu CJ(许崇杰)1; Chen Z(陈州)1; Ji G(季刚)1; Sun XL(孙秀丽)1; Li JF(李军方)1; Tang Y(唐勇)1
刊名	J. Mol. Catal. A-Chem.
	2014
卷号	383 页码:77-82
其他题名	(ArO)TiR3配合物用于高间规专一性的苯乙烯聚合反应研究
通讯作者	孙秀丽
英文摘要	A kind of (ArO)TiR3 (AK) = 2,6-(R')(2)-4-methylphenolate, R' = Me, Bu-t, CH2SPh, CH2N(Pr-i)(2), CH2NPh2) complexes was synthesized and characterized. X-ray analysis of 6a and 7 shows that neither -CH2SPh (6a) nor CH2N(Pr-i)(2) group (7) coordinates to titanium. Large bond angles C(Ar)-O(1)-Ti(1) angel (152.9(2)degrees in 6a and 175.33 degrees in 7 indicate that the bond have partial sp-hybridized character. Upon treatment with modified methylaluminoxane (MMAO), the titanium complexes exhibit significant thermal stability, and prove useful as styrene syndiotactic polymerization catalysts. Comparisons between different complexes on the styrene polymerization were discussed. Steric instead of electronic properties at 2,6-positions of phenol affect the polymerization activity. (2-tert-Butyl)-4-methylphenoxytitanium(IV) chloride 5e was established the most efficient one. High activity (1.11 x 10(5) g sPS/mol(Ti) h) was achieved when styrene polymerization was carried out in the presence of 5e/MMAO at 130 degrees C for 2 h. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	金属有机化学
收录类别	SCI
原文出处	http://dx.doi.org/10.1016/j.molcata.2013.11.032
语种	英语
内容类型	期刊论文
源URL	[http://ir.sioc.ac.cn/handle/331003/39045]
专题	上海有机化学研究所_金属有机化学国家重点实验室
作者单位	1.苏州大学 2.中科院上海有机化学研究所
推荐引用方式 GB/T 7714	Xu CJ,Chen Z,Ji G,et al. (ArO)TiR3 complexes for highly syndiospecific styrene polymerization[J]. J. Mol. Catal. A-Chem.,2014,383:77-82.
APA	许崇杰,陈州,季刚,孙秀丽,李军方,&唐勇.(2014).(ArO)TiR3 complexes for highly syndiospecific styrene polymerization.J. Mol. Catal. A-Chem.,383,77-82.
MLA	许崇杰,et al."(ArO)TiR3 complexes for highly syndiospecific styrene polymerization".J. Mol. Catal. A-Chem. 383(2014):77-82.