Origin of helical morphology of polyacetylene fibrils synthesized in chiral nematic liquid crystal solvents

被引：7

作者：

Shirakawa, Hideki ^{[1
]}

机构：

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

来源：

CURRENT APPLIED PHYSICS | 2001年 / 1卷 / 01期

关键词：

Conducting polymers; Liquid crystals; Morphology;

D O I：

10.1016/S1567-1739(00)00017-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polyacetylene fibrils synthesized in chiral nematic (N*) liquid crystals (LCs) as a polymerization solvent show clockwise helical morphology when a clockwise N* LC is used as a solvent and vice versa. To explain the concordant result in terms of screw direction, a model is proposed in which the conjugated molecule makes a loose loop with a radius of micrometer order, twisting clockwise or counterclockwise. The observed twisted morphology of the fibril can be explained by the condensation of many loosely looped molecular chains grown in a twisted domain of the N* LC solvent. (c) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：88 / 89

页数：2

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