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(ArO)TiR3 complexes for highly syndiospecific styrene polymerization
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
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
2014
发表期刊J. Mol. Catal. A-Chem.
卷号383页码:77-82
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.
学科领域金属有机化学
DOI10.1016/j.molcata.2013.11.032
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收录类别SCI
语种英语
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/39045
专题金属有机化学国家重点实验室
通讯作者Sun XL(孙秀丽)
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.
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