An unusual branching in single crystals of isotactic poly(4-methyl-1-pentene)

被引：7
|
作者：
Ruan, J [1 ]
Alcazar, D [1 ]
Thierry, A [1 ]
Lotz, B [1 ]
机构：
[1] Univ Strasbourg 1, Inst Charles Sadron, CNRS, F-67083 Strasbourg, France
来源：
POLYMER | 2006年 / 47卷 / 03期
关键词：
isotactic poly(4-methyl-1-pentene); structural disorder; epitaxial branching;
D O I：
10.1016/j.polymer.2005.12.012
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Single crystals of low M-w poly(4-methyl-1-pentene) (P4MP1) in its form 1 display an unusual streaking of their diffraction pattern. The crystals also frequently give rise to composite diffraction patterns made of two patterns rotated by 37 degrees. The streaking indicates a structural disorder, namely a shift of nearby layers along the a or b axis by one quarter of the unit-cell edge. The daughter crystals, rotated by 37 degrees, are produced on the edges of the parent crystals via an epitaxial growth that is a direct consequence of the structural disorder. (c) 2005 Published by Elsevier Ltd.
引用
收藏
页码：836 / 840
页数：5
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