A STRUCTURAL STUDY OF POLY (PARA-PHENYLENE VINYLENE)

被引：75

作者：

CHEN, D

WINOKUR, MJ

MASSE, MA

KARASZ, FE

机构：

[1] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706

[2] UNIV MASSACHUSETTS,DEPT POLYMER SCI & ENGN,AMHERST,MA 01003

来源：

POLYMER | 1992年 / 33卷 / 15期

关键词：

STRUCTURAL PROPERTIES; POLY(PARA-PHENYLENE VINYLENE); CONDUCTING POLYMERS; X-RAY DIFFRACTION);

D O I：

10.1016/0032-3861(92)90223-J

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

X-ray diffraction profiles of highly oriented poly (p-phenylene vinylene) (PPV) samples have been acquired at temperatures ranging from 20 to 700 K. The resulting equatorial data have been analysed using a linked-atom-least-square structure factor refinement algorithm that allows for a more complete characterization of the polymer structure and of its temperature-dependent evolution. The resulting analysis identifies strong librational motions of the phenyl rings, a finding in agreement with recent n.m.r. studies. In additon, thin films of PPV are found to possess measurable equatorial anisotropy with [200] and [110] lattice planes preferentially oriented parallel to the film surface.

引用

页码：3116 / 3122

页数：7

共 36 条

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