THE EXISTENCE OF A TETRAGONAL STRUCTURE IN BLOCK-COPOLYMERS

被引：11

作者：

FISCHER, H

机构：

[1] H. H. Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, Tyndall Avenue, Royal Fort

来源：

POLYMER | 1994年 / 35卷 / 17期

关键词：

MORPHOLOGY; BLOCK COPOLYMERS; TETRAGONAL STRUCTURE;

D O I：

10.1016/0032-3861(94)90563-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The morphology of AB and BAB block copolymers consisting of one amorphous block (A) and liquid crystalline blocks (B) has been investigated using TEM, low angle electron diffraction and small angle X-ray diffraction. All samples of poly[styrene-block-2-(3-cholsteryl-oxycarbonyloxy)ethyl methacrylate] (PS-PChEMA) with a volume fraction PHI(PS) between 0.3 and 0.4 show a morphology consisting of PS rods in a PChEMA matrix. The rods are organized in a tetragonal lattice rather than the expected hexagonal structure.

引用

页码：3786 / 3788

页数：3

共 13 条

[1] EFFECT OF ARM NUMBER AND ARM MOLECULAR-WEIGHT ON THE SOLID-STATE MORPHOLOGY OF POLY(STYRENE-ISOPRENE) STAR BLOCK COPOLYMERS [J].