DENSITY AND CONCENTRATION FLUCTUATIONS IN POLY(STYRENE-B-PHENYLMETHYLSILOXANE) COPOLYMERS

被引：12

作者：

FLOUDAS, G

VOGT, S

PAKULA, T

FISCHER, EW

机构：

[1] Max-Planck-Institut für Polymerforschung, D-55021 Mainz

来源：

MACROMOLECULES | 1993年 / 26卷 / 26期

关键词：

D O I：

10.1021/ma00078a015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Small-angle X-ray scattering (SAXS) is employed to study the density and concentration fluctuations near the microphase separation in poly(styrene-b-phenylmethylsiloxane) copolymers. The former were calculated from the measured isothermal compressibility and are continuous throughout the transition. The residual SAXS background intensity due to local concentration fluctuations is a sensitive probe of the order-disorder transition. The same results have been obtained by independent computer simulations of dense diblock copolymer melts.

引用

页码：7210 / 7213

页数：4

共 18 条

[11] DETERMINATION OF THE TEMPERATURE AND TIME-DEPENDENCE OF THE ABSOLUTE SMALL-ANGLE X-RAY-SCATTERING INTENSITY OF PARTIALLY CRYSTALLINE POLYMERS EMPLOYING SYNCHROTRON RADIATION [J].