聚苯胺
聚合
肺表面活性物质
水溶液
十二烷基硫酸钠
化学
胶束溶液
阳离子聚合
苯胺
胶束
化学工程
动力学
乳液聚合
高分子化学
无机化学
有机化学
聚合物
工程类
物理
量子力学
生物化学
作者
Byoung-Jin Kim,Seong‐Geun Oh,Moon Gyu Han,Seung‐Soon Im
出处
期刊:Langmuir
[American Chemical Society]
日期:2000-06-14
卷期号:16 (14): 5841-5845
被引量:230
摘要
Chemical oxidative polymerization of aniline was studied in a conventional aqueous solution and in micellar solutions of sodium dodecyl sulfate (SDS, anionic surfactant) and nonylphenol ethoxylate(9) (NP-9, nonionic surfactant) to investigate the effect of molecular structure of surfactants on the polymerization kinetics and particle size. The polymerization kinetics in NP-9 micellar solution were very slow, and this result was explained based on the structural characteristics of surfactant. SDS micellar solutions resulted in a highly transparent solution without any precipitates, whereas some precipitates were visually observed in the NP-9 micellar solution after the reaction finished. The electrical conductivities of polyaniline pellets formed with particles prepared in SDS and NP-9 micellar solutions and aqueous solution showed about 20, 4, and 4 S/cm, respectively. The highest electrical conductivity of particles from SDS micellar solution might be due to the smallest size of particles and the highest doping level of polyaniline.
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