Synthesis of polyenes that contain mesogenic side chains via the living polymerization of 4-(ferrocenylethynyl)-4'-ethynyltolan

被引:48
作者
Buchmeiser, MR
机构
[1] Inst. F. Analyt. Chem. Radiochemie, Universität Innsbruck, A-6020 Innsbruck
关键词
ALKYLIDENE COMPLEXES; POLYMERS; CYCLOPOLYMERIZATION; DERIVATIVES; CATALYST; MONOMERS; CRITERIA;
D O I
10.1021/ma961317f
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The living polymerization of the metallocenyl-substituted diethynyltolan, 4-(ferrocenylethynyl)-4'-ethynyltolan (I), by the well-defined Schrock metathesis catalyst Mo(N-2,6-i-Pr2C6H3)(CHCMe2-Ph)(OCMe(CF3)(2))(2) (II) is described. The polymerization starts virtually solely via beta-addition of the monomer to the metal-carbon double bond and yields conjugated, surprisingly soluble, main chain polyenes containing mesogenic, rigid side chains. Despite the beta-addition, the polymerization proceeds in a controlled, living manner, resulting in the the formation of low polydispersity polymers. The resulting polymers exhibit a remarkable stability against air and thermal treatment.
引用
收藏
页码:2274 / 2277
页数:4
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