PREPARATION OF MONODISPERSE ELLIPSOIDAL POLYSTYRENE PARTICLES

被引：345

作者：

HO, CC

KELLER, A

ODELL, JA

OTTEWILL, RH

机构：

[1] UNIV BRISTOL,SCH CHEM,CANTOCKS CLOSE,BRISTOL BS8 1TS,AVON,ENGLAND

[2] UNIV BRISTOL,HH WILLS PHYS LAB,BRISTOL BS8 1TL,AVON,ENGLAND

[3] UNIV MALAYA,DEPT CHEM,59100 KUALA LUMPUR,MALAYSIA

来源：

COLLOID AND POLYMER SCIENCE | 1993年 / 271卷 / 05期

关键词：

POLYSTYRENE; POLYVINYLALCOHOL; LATICES; ELLIPSOIDAL PARTICLES;

D O I：

10.1007/BF00657391

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：

A method is described for the preparation of monodisperse ellipsoidal particles of polystyrene in the colloidal size range. Monodisperse polystyrene particles were dispersed in a solution of polyvinyl alcohol. This dispersion was then allowed to form, by evaporation, a thin film of polyvinyl alcohol containing spherical polystyrene particles. Strips of this film were clamped into a metal frame, heated rapidly in an oil bath to 200-degrees-C and stretched to a predetermined extent in order to convert the spherical particles into ellipsoids; the film was then cooled. A wide range of axial ratios for a variety of initial particle sizes was obtained by this method.

引用

页码：469 / 479

页数：11

共 19 条

[1]

Candau F., 1990, INTRO POLYM COLLOIDS

[2]

Chung-Li Y., 1976, PROG COLLOID POLYM S, V60, P163

[3]

ELAASSER MS, 1987, FUTURE DIRECTIONS PO, V138

[4]

FITCH RM, 1980, POLYM COLLOIDS, V2