LIGHT-SCATTERING AND MICROSCOPY FROM BLOCK-COPOLYMERS WITH CYLINDRICAL MORPHOLOGY

被引：23

作者：

NEWSTEIN, MC

GARETZ, BA

DAI, HJ

BALSARA, NP

机构：

[1] POLYTECH INST NEW YORK,DEPT ELECT ENGN,BROOKLYN,NY 11201

[2] POLYTECH INST NEW YORK,DEPT CHEM,BROOKLYN,NY 11201

[3] POLYTECH INST NEW YORK,DEPT CHEM ENGN,BROOKLYN,NY 11201

来源：

MACROMOLECULES | 1995年 / 28卷 / 13期

关键词：

D O I：

10.1021/ma00117a032

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Cylindrical-morphology diblock copolymers, when ordered under quiescent conditions, exhibit a 4-fold cloverleaf H-v (depolarized) light scattering pattern, with an off-axis intensity maximum. The grain structure of these samples has been resolved by polarized-light microscopy. Closely-spaced grain pairs, whose optic axes are approximately perpendicular, have been observed. A correlated-grain-pair model is proposed, and scattering patterns are calculated using a correlation function approach. A 4-fold symmetry is a consequence of this model, and for some limited sets of model parameters, a qualitative agreement with experiment is observed.

引用

页码：4587 / 4597

页数：11

共 22 条

[1] RELATIONSHIP BETWEEN BIREFRINGENCE AND THE STRUCTURE OF ORDERED BLOCK COPOLYMER MATERIALS [J].