Supramolecular aggregation in bulk poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene)

被引：97

作者：

Chen, SH

Su, AC ^{[1
]}

Huang, YF

Su, CH

Peng, GY

Chen, SA

机构：

[1] Natl Sun Yat Sen Univ, Inst Mat Sci & Engn, Kaohsiung 804, Taiwan

[2] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 300, Taiwan

来源：

MACROMOLECULES | 2002年 / 35卷 / 11期

关键词：

D O I：

10.1021/ma025505j

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

An experimental study was carried out to illustrate that MEH-PPV is in fact mesomorphic in nature, with the tendency to form supramolecular assemblies with primitively layered structure and yet maintaining its nematic-like optical texture upon heat treatment in the temperature range of 200-260°C. Similarities in ultraviolet-visible light absorption and photoexcited emission behavior of heat-treated MEH-PPV as compared to reported aggregation effects in solution processed films indicate that the aggregates formed in solutions and the thermally induced supramolecular assemblies in the bulk state are structurally similar in terms of spatial arrangement of chain segments.

引用

页码：4229 / 4232

页数：4

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