PREPARATION OF COLLOIDAL SILVER USING VARIOUS REDUCTANTS IN THE PRESENCE OF COPOLYMERS OF VINYL ALCOHOL-N-VINYL PYRROLIDONE

被引:9
作者
ESUMI, K
ISHIZUKI, N
TORIGOE, K
NAKAMURA, H
MEGURO, K
机构
[1] Department of Applied Chemistry, Institute of Colloid and Interface Science, Science University of Tokyo, Tokyo, 162, Kagurazaka, Shinjuku‐ku
关键词
D O I
10.1002/app.1992.070440609
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Colloidal silver was prepared using various reductants such as hydrazine, ascorbic acid, ribose, and hydrogen in aqueous solution in the presence of copolymers of vinyl alcohol-N-vinyl pyrrolidone. The average particle size of colloidal silver decreased with increasing amount of copolymers added. The reduction by hydrogen provided smaller silver particles compared with the other reductants. The stability of colloidal silver against AlCl3 increased with increasing amount of copolymers added.
引用
收藏
页码:1003 / 1007
页数:5
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