Liquid crystalline polyacetylene derivatives with stable radical group

被引：6

作者：

Akagi, K ^{[1
]}

Goto, H ^{[1
]}

Hayashi, A ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

来源：

SYNTHETIC METALS | 1999年 / 103卷 / 1-3期

关键词：

polyacetylene derivative; liquid crystalline group; stable radical group; macroscopic spin alignment;

D O I：

10.1016/S0379-6779(98)00633-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Di-substituted polyacetylene was synthesized by introducing both liquid crystalline (LC) group and stable radical group into side chains. Di-tert-butylphenol derivative, where the hydroxy moiety of the phenyl group was protected by trimethylsilyl group, was adopted as a stable radical precursor. Acetylene monomer substituted with the LC group and the radical precursor was polymerized using metathesis catalyst of TaCl5-(n-Bu)(4)Sn. The polymer was soluble in organic solvents and showed an enantiotropic smectic phase. ESR spin intensity of the polymer was evaluated after the radical precursor was deprotected and oxidized.

引用

页码：2291 / 2291

页数：1