AI Article Synopsis
- Polyaniline films were created on glass supports through dispersion polymerizations of aniline, using stabilizers like poly(N-vinylpyrrolidone) and hydroxypropylcellulose.
- The process involves heterogeneous catalysis at the surfaces in contact with the mixture to initiate polyaniline chains.
- Various analytical methods, such as surfometry, optical absorption, and FTIR spectroscopy, confirmed the films' thickness, chemical structure, and the absence of stabilizers, with thicker films exhibiting higher conductivity.
Article Abstract
Polyaniline films were grown on glass supports during dispersion polymerizations of aniline using poly(N-vinylpyrrolidone) and hydroxypropylcellulose as stabilizers. The initiation of polyaniline chains is proposed to be heterogeneously catalyzed by the surfaces immersed in the reaction mixture. Film formations in dispersion and precipitation polymerizations are compared. Surfometry and optical absorption were used to assess the submicrometer film thickness, and FTIR spectroscopy was used to analyze the chemical structure of films and prove the absence of stabilizer. The film thickness was proportional to the dimensions of simultaneously produced colloidal polyaniline particles. The conductivity of films increased with increasing film thickness.
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| http://dx.doi.org/10.1006/jcis.2001.8197 | DOI Listing |
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