SYNCHROTRON SAXS MEASUREMENTS ON SOLUTIONS OF POLY(STYRENE-ISOPRENE) AB-BLOCK COPOLYMER IN ANILINE

被引：24

作者：

HILFIKER, R ^{[1
]}

WU, DQ ^{[1
]}

CHU, B ^{[1
]}

机构：

[1] SUNY STONY BROOK,DEPT CHEM,LONG ISL,NY 11794

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1990年 / 135卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0021-9797(90)90028-M

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Synchrotron small angle X-ray scattering (SAXS) has been performed on solutions of a poly (styrene-isoprene) AB block (PS/PIP) copolymer in aniline. The copolymer forms aggregates in this particular solvent. Earlier investigations could not determine whether the aggregates were micelle-like or vesicle-like. In order to distinguish between these two possibilities, the form factor has to be known over a wide range of the scattering vector (q) to within a satisfactory precision. Due to the high intensity of synchrotron radiation, it was possible to obtain SAXS results with a sufficient precision, which allowed the conclusion that the aggregates were vesicle-like when the PS block was sufficiently short. The effect of polydispersity on the form factor is also discussed. © 1990.

引用

页码：573 / 579

页数：7

共 12 条

[1] ADSORPTION OF CHAIN MOLECULES WITH A POLAR HEAD A-SCALING DESCRIPTION [J].