The preparation of colloidal precious metal particles using copolymers of vinyl alcohol-N-vinylpyrrolidone.
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概要
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Precious metal particles of platinum and silver have been prepared by the reduction of metal salts dissolved in an aqueous solution of a copolymer of vinyl alcohol and <I>N</I>-vinylpyrrolidone with methanol. The stable platinum sols were obtained in the presence of poly(vinyl alcohol), poly(<I>N</I>-vinylpyrrolidone), and their copolymers, but their particle sizes hardly changed with the ratio of <I>N</I>-vinylpyrrolidone in the copolymer. On the other hand, colloidal stable silver sols were obtained only in the presence of a copolymer. Further, with an increase in the ratio of <I>N</I>-vinylpyrrolidone in the copolymer, the particle size of silver became small.
- 公益社団法人 日本化学会の論文
著者
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Esumi Kunio
Department Of Applied Chemistry And Institute Of Colloid And Interface Science Science University Of
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Esumi Kunio
Department of Applied Chemistry, Institute of Colloid and Interface Science, Science University of Tokyo
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Meguro Kenjiro
Department of Applied Chemistry and Institute of Colloid and Interface Science, Science University of Tokyo
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Nakamura Yukari
Department of Applied Chemistry, Institute of Colloid and Interface Science, Science University of Tokyo
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Torizuka Makoto
Department of Applied Chemistry, Institute of Colloid and Interface Science, Science University of Tokyo
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Hayashi Yoshihiro
Department of Applied Chemistry, Institute of Colloid and Interface Science, Science University of Tokyo
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