POLYANILINE DISPERSIONS .4. POLYMERIZATION SEEDED BY POLYANILINE PARTICLES

被引:38
作者
STEJSKAL, J
SPIRKOVA, M
KRATOCHVIL, P
机构
[1] Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague
关键词
D O I
10.1002/actp.1994.010450509
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Aniline hydrochloride was polymerized in water and in 1 M hydrochloric acid by oxidation with ammonium persulfate. The macroscopic precipitation of polyaniline was prevented by the presence of poly(vinyl alcohol). The changes of pH occurring during the reaction were recorded. Their relation to color transitions is discussed. The reaction was accelerated by introduction of seed polyaniline particles. The properties of resulting dispersions were not affected by seeding. The particle diameter was about 310 nm for polymerization in water and about 420 nm in 1 M hydrochloric acid.
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页码:385 / 388
页数:4
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