DEVELOPMENT OF MORPHOLOGY IN LATEX-PARTICLES - THE INTERPLAY BETWEEN THERMODYNAMIC AND KINETIC-PARAMETERS

被引：56

作者：

CHEN, YC ^{[1
]}

DIMONIE, VL ^{[1
]}

SHAFFER, OL ^{[1
]}

ELAASSER, MS ^{[1
]}

机构：

[1] LEHIGH UNIV,INST EMULS POLYMERS,CTR POLYMER SCI & ENGN,DEPT CHEM ENGN,BETHLEHEM,PA 18015

来源：

POLYMER INTERNATIONAL | 1993年 / 30卷 / 02期

关键词：

LATEX PARTICLES; MORPHOLOGY; SEEDED EMULSION POLYMERIZATION; DIRECT EMULSIFICATION; THERMODYNAMIC ANALYSIS;

D O I：

10.1002/pi.4990300208

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A thermodynamic analysis and a mathematical model were developed to describe the free energy changes corresponding to various possible morphologies in composite latex particles. Two experimental composite latex systems were used to verify and establish limitations of the model. The two latex systems were based on polystyrene/poly(methyl methacrylate), one prepared by conventional seeded emulsion polymerization and the second system by direct emulsification of a solution of a blend of the two polymers. The influence of several experimental parameters on latex particle morphology was investigated. These included monomer/polymer ratio, surfactant type, and initiator type in the seeded emulsion polymerization system. The influence of local viscosity, shear effects, and molecular weights of polymers were investigated in the artificial latex system.

引用

页码：185 / 194

页数：10

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