Synthesis of thermotropic liquid crystalline all-trans-p-phenylenevinylene oligomers via two-step metathesis

被引：10

作者：

ThornCsanyi, E

Kraxner, P

机构：

[1] Inst. of Tech. and Macromolec. Chem., University of Hamburg, D-20146 Hamburg

来源：

MACROMOLECULAR SYMPOSIA | 1997年 / 122卷

关键词：

D O I：

10.1002/masy.19971220113

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Liquid crystalline products of oligomeric p-phenylenevinylene derivates were prepared metathetically using a stable molybdenum carbene complex (Mo(NArMe2)(CHCMe2Ph)[OCMe(CF3)(2)](2)) The synthesis was conducted via two steps: 1. Metathesis polycondensation of 2,5-dialkyl-1,4-divinylbenzenes to oligo-(2,5-dialkyl-1 ,4-phenylenevinylene)s, 2. Endcapping of the vinyl groups via cross-metathesis using 3-hexene. The products were characterized by H-1-NMR and UV/Vis spectroscopy, as well as by DSC.

引用

页码：77 / 81

页数：5

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