Electropolymerization of phenylacetylene in acetonitrile

• Published in: Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2005-06, Vol.43 (11), p.2407-2416
• Main Authors: García-Cañadas, J., Rodríguez, J. G., Lafuente, A., Marcos, M. L., Velasco, J. González
• Format: Article
• Language: English
• Subjects: anionic polymerization; anodic polymerization; Applied sciences; electrochemistry; Exact sciences and technology; mechanism of electropolymerization; Physicochemistry of polymers; poly(phenylacetylene); polyacetylenes; Polymerization; Polymers and radiations
• ISSN: 0887-624X; 1099-0518
• DOI: 10.1002/pola.20713

The electrooxidation of phenylacetylene (PA) in acetonitrile (0.1 M in LiClO4) produced poly(phenylacetylene). The product was isolated, purified, and characterized. Spectroscopic data showed the trans structure of the polymer. A radical reaction mechanism was proposed in which the oxidation of PA led to the formation of a PA radical in solution, which initiated a radical polymerization. The theoretical treatment for the radical mechanism yielded a reaction rate equation identical to the experimental one. The average molar mass was determined by gel permeation chromatography to be approximately 3100. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 2407–2416, 2005 The electrooxidation of phenylacetylene (PA) in acetonitrile (0.1 M in LiClO4) produced poly(phenylacetylene). The product was isolated, purified, and characterized. Spectroscopic data showed the trans structure of the polymer. A radical reaction mechanism was proposed in which the oxidation of PA led to the formation of a PA radical in solution, which initiated a radical polymerization. The theoretical treatment for the radical mechanism yielded a reaction rate equation identical to the experimental one. The average molar mass was determined by gel permeation chromatography to be approximately 3100.