物理化学学报 >> 2004, Vol. 20 >> Issue (01): 103-106.doi: 10.3866/PKU.WHXB20040122

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分散聚合水基聚苯胺乳胶微球制备与表征

方鲲;李守平;陶雪钰;王清录;毛卫民;吴其晔   

  1. 青岛科技大学高分子科学与工程学院,青岛　266042; 北京科技大学材料科学与工程学院,北京　100083
  • 收稿日期:2003-05-06 修回日期:2003-09-30 发布日期:2004-01-15
  • 通讯作者: 吴其晔 E-mail:qiyewu@163.com

Preparation by Dispersion Polymerization and Characterization of Soluble and Stable Colloidal Polyaniline Microparticles

Fang Kun;Li Shou-Ping;Tao Xue-Yu;Wang Qing-Lu;Mao Wei-Min;Wu Qi-Ye   

  1. College of Polymer Science ＆ Engineering, Qingdao University of Science and Technology, Qingdao　266042; College of Material Science ＆ Engineering, Beijing University of Science and Technology, Beijing　100083
  • Received:2003-05-06 Revised:2003-09-30 Published:2004-01-15
  • Contact: Wu Qi-Ye E-mail:qiyewu@163.com

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摘要： 水溶性空间稳定剂聚乙烯吡咯烷酮（PVP）存在时，采用分散聚合制备水溶性单分散的聚苯胺(PAn)乳胶粒子，采用透射电子显微镜（TEM）观察粒子形态及尺寸；利用紫外-可见吸收光谱对胶体分散体系进行表征.实验结果表明，当PAn含量较少（w< 16.78％）时， PAn-PVP复合乳胶粒子呈米粒状；当PAn含量较大（w >23.22％）时， PAn-PVP复合乳胶粒子呈球形.

关键词: 分散聚合, 聚苯胺, 胶体粒子, 空间稳定剂

Abstract: Water soluble and stable colloidal polyaniline (PAn) aqueous dispersions were obtained using poly(vinyl pyrrolidone) (PVP) as steric stabilizer via dispersion polymerization. The morphology and size of PAn were characerized by transmission electron microscopy (TEM). Doped and dedoped PAn-PVP in the aqueous dipersions were investigated via the UV-Vis spectra. The results showed that when the content of PAn was low（wPAn< 16.78％）, the morphology of PAn-PVP was rice-grain particles. And when the content of PAn was high （wPAn >23.22％）, the morphology of PAn-PVP was spherical particles .The PAn-PVP particles were composites.

Key words: Dispersion polymerization, Polyaniline, Colloidal particles, Steric stabilizer