CHROMATOGRAPHIC INVESTIGATIONS OF MACROMOLECULES IN THE CRITICAL RANGE OF LIQUID-CHROMATOGRAPHY .7. ANALYSIS OF THE POLY(METHYL METHACRYLATE) BLOCK IN POLY(STYRENE-BLOCK-METHYL METHACRYLATE)

被引：56

作者：

PASCH, H

GALLOT, Y

TRATHNIGG, B

机构：

[1] INST CHARLES SADRON,F-67083 STRASBOURG,FRANCE

[2] KARL FRANZENS UNIV,INST ORGAN CHEM,DEPT POLYMER CHEM,A-8010 GRAZ,AUSTRIA

来源：

POLYMER | 1993年 / 34卷 / 23期

基金：

奥地利科学基金会;

关键词：

BLOCK COPOLYMERS; LIQUID CHROMATOGRAPHY; CRITICAL RANGE;

D O I：

10.1016/0032-3861(93)90032-6

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(styrene-block-methyl methacrylate)s were analysed by liquid chromatography at the critical point of adsorption. Operating at chromatographic conditions, corresponding to the critical mode of polystyrene and a size exclusion mode for poly(methyl methacrylate), the molar mass and the polydispersity of the poly(methyl methacrylate) block in the block copolymers was determined. The chemical composition of the block copolymers was obtained using size exclusion chromatography with coupled density-refractive index detection, and compared to data calculated from critical chromatography experiments. The agreement of the data obtained by the different methods was found to be very good.

引用

页码：4986 / 4989

页数：4

共 14 条

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