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Citation: Fang Kun, Li Shou-Ping, Tao Xue-Yu, Wang Qing-Lu, Mao Wei-Min, Wu Qi-Ye. Preparation by Dispersion Polymerization and Characterization of Soluble and Stable Colloidal Polyaniline Microparticles[J]. Acta Physico-Chimica Sinica, ;2004, 20(01): 103-106. doi: 10.3866/PKU.WHXB20040122 shu

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

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 Date: 6 May 2003
Available Online: 15 January 2004

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.
- Dispersion polymerization;Polyaniline;Colloidal particles;Steric stabilizer
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