SHEAR-INDUCED CRYSTALLIZATION IN A LIQUID-CRYSTALLINE RANDOM COPOLYESTER

被引：18
|
作者：
NICHOLSON, TM
MACKLEY, MR
WINDLE, AH
机构：
[1] UNIV CAMBRIDGE,DEPT CHEM ENGN,PEMBROKE ST,CAMBRIDGE,ENGLAND
[2] UNIV CAMBRIDGE,DEPT MAT SCI & MET,CAMBRIDGE,ENGLAND
来源：
POLYMER | 1992年 / 33卷 / 02期
关键词：
LIQUID CRYSTAL POLYMER; SHEAR; CRYSTALLIZATION; X-RAY DIFFRACTION;
D O I：
10.1016/0032-3861(92)91007-O
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 observations have been made during high temperature shear of a liquid crystalline copolyester. Whilst being sheared above the polymer melting point, a sharp crystallite diffraction peak develops. This peak grows in intensity as the shear rate increases and disappears on cessation of shear. It is associated with the shear stabilization of crystallites, presumably of the non-periodic-layer type.
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页码：434 / 435
页数：2
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