MOLECULAR-WEIGHT DEPENDENCE OF LAMELLAR DOMAIN SPACING OF DIBLOCK COPOLYMERS IN BULK

被引：148

作者：

MATSUSHITA, Y

MORI, K

SAGUCHI, R

NAKAO, Y

NODA, I

NAGASAWA, M

机构：

[1] Department of Synthetic Chemistry, Nagoya University, Nagoya 464-01, Furo-cho, Chikusa-ku

来源：

MACROMOLECULES | 1990年 / 23卷 / 19期

关键词：

D O I：

10.1021/ma00221a019

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 molecular weight dependence of lamellar domain spacing of styrene—2-vinylpyridine diblock copolymers in bulk was measured by means of small-angle X-ray scattering and compared with theories of microphase-separated structure. It was found that the lamellar domain spacing-molecular weight relationship of the diblock copolymer in bulk is given by D = O.337M0·64 over the molecular weight range from 38K to 740K. The experimental result is in good agreement with the theories on the basis of Gaussian chain statistics in a confined space, particularly the theory of Helfand-Wasserman. © 1990, American Chemical Society. All rights reserved.

引用

页码：4313 / 4316

页数：4