PREPARATION AND PROPERTIES OF UNIFORM COATED COLLOIDAL PARTICLES .5. YTTRIUM BASIC CARBONATE ON POLYSTYRENE LATEX

被引:132
作者
KAWAHASHI, N
MATIJEVIC, E
机构
[1] Department of Chemistry, Clarkson University, Potsdam
关键词
D O I
10.1016/0021-9797(90)90235-G
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
Cationic polystyrene latex was coated with uniform layers of yttrium basic carbonate by aging at elevated temperatures dispersions of the polymer colloid in the presence of aqueous solutions of yttrium nitrate, urea, and polyvinylpyrrolidone. The thickness and morphology of the deposited layers could be altered by suitably adjusting the reactant concentrations, aging time, and temperature. A mechanism for the formation of the coating shell is suggested. © 1990.
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页码:534 / 542
页数:9
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