THE INTERFACE BETWEEN IMMISCIBLE POLYMERS IN COMPOSITE LATEXES - A SMALL-ANGLE X-RAY-SCATTERING STUDY EMPLOYING CONTRAST VARIATION

被引：22

作者：

DINGENOUTS, N ^{[1
]}

KIM, YS ^{[1
]}

BALLAUFF, M ^{[1
]}

机构：

[1] UNIV KARLSRUHE,INST POLYMER,D-76128 KARLSRUHE,GERMANY

来源：

COLLOID AND POLYMER SCIENCE | 1994年 / 272卷 / 11期

关键词：

SMALL-ANGLE X-RAY SCATTERING; LATEX; COLLOIDS; CONTRAST VARIATION; EMULSION POLYMERIZATION;

D O I：

10.1007/BF00654168

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：

An investigation of the radial structure of composite latex particles by small-angle x-ray scattering (SAXS) is given. Measurements at different contrasts were done by addition of sucrose to the dispersion medium water. The latex particles investigated here consist of a poly(styrene) core and a shell of poly(methylmethacrylate) and were prepared by seeded emulsion polymerization. Since the electron density of both polymers can be easily matched by concentrated sucrose solution, a full analysis of the radial electron density by contrast variation can be given. Depending on the mode of monomer addition during the second polymerization step a very sharp or a diffuse interface between the two incompatible polymers may result.

引用

页码：1380 / 1387

页数：8

共 43 条

[41] ELECTRON-MICROSCOPY STUDIES OF POLYSTYRENE POLY(METHYL METHACRYLATE) CORE-SHELL LATEX-PARTICLES [J].

WINNIK, MA ;

ZHAO, CL ;

SHAFFER, O ;

SHIVERS, RR .

LANGMUIR, 1993, 9 (08) :2053-2065

[42] REPULSIVE WALL EFFECTS LEADING TO GRADUATED CORE SHELL SUPRAMOLECULAR STRUCTURE IN POLYSTYRENE LATEXES [J].

YANG, SI ;

KLEIN, A ;

SPERLING, LH ;

CASASSA, EF .

MACROMOLECULES, 1990, 23 (21) :4582-4590

[43] DEVELOPMENT OF SUPERMOLECULAR STRUCTURE IN POLYSTYRENE LATEXES [J].

YANG, SI ;

KLEIN, A ;

SPERLING, LH .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1989, 27 (08) :1649-1662

← 1 2 3 4 5 →