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Citation: WEI Qi, FAN Hai-Jun, LI Ying, WU Qi-Ye. Growth Mechanism of PANI Films Prepared by in-situ Polymerization Deposition on Glass Surface[J]. Chinese Journal of Applied Chemistry, ;2008, 25(3): 276-280. shu

Growth Mechanism of PANI Films Prepared by in-situ Polymerization Deposition on Glass Surface

1.
Key laboratory of Rubber-Plastics, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042

Corresponding author: WU Qi-Ye,
Received Date: 5 April 2007
Available Online: 25 July 2007
Fund Project: 国家自然科学基金资助项目(50390090) (50390090)

PANI films were in-situ prepared on the surface of glass substrates dipped into the solution of dispersion polymerization of aniline,using inorganic nano-particulate-nanometer SiO₂ as steric stabilizer instead of water soluble polymer.The film morphology,chemical structure and composition of PANI film were characterized by SEM,AFM,UV-Vis,FTIR and XRD.The results indicate that homogeneous,satin and transparent PANI films could be prepared.The most thickness of the films could reach to 200 nm,and their conductivity ranged between 3.0×10^-3~1.8×10^-2 S/cm.Preliminary result indicates that there were two direct actuating forces aroused by aniline's adsorption on glass surface:one was the soakage of glass surface;the other is the adsorption of aniline cation free radicals on glass surface.The growth of PANI films underwent three stages:adsorption nucleation,growth and growth saturation.
- dispersion polymerization,
- in-situ deposition,
- PANI films,
- nanometer SiO₂,
- growth mechanism
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