Studies on the Mechanism of Copolymerization of Aniline and Propylene Oxide and Characterization of Copolymer via FTIR Technique

Chem. J. Chinese Universities

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Studies on the Mechanism of Copolymerization of Aniline and Propylene Oxide and Characterization of Copolymer via FTIR Technique

LI Mei-Chao^1,2*, HU Jia-Qi², LIU Yan-Na², MA Chun-An²

1. Research Center of Analysis and Measurement,
2. College of Chemical Engineering and Material Science, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China

Received:2007-12-25 Revised:1900-01-01 Online:2008-08-10 Published:2008-08-10
Contact: LI Mei-Chao

Abstract

Abstract: Copolymerization is often used as one of the most important method to improve the physical and chemical properties of a polymer. Propylene oxide is often added to the electrolyte during electrochemical polymerization to improve some properties of the polymer. Therefore, polyaniline-poly(propylene oxide)(PAN-PPO) was synthesized in aqueous solution containing aniline and propylene oxide by electrochemical method in this paper. In situ FTIR spectroscopy was used to investigate its electrochemical copolymerization mechanism. It showed that α-ring-opening reaction of propylene oxide might be initiated by radical catalyst from aniline and its oligomer, and then copolymerization of aniline and propylene oxide took place to form structures with aliphatic-aromatic ether. In addition, the PAN-PPO film formation was regular from the middle to two sides on the platinum surface, which was characterized by FTIR microscopic image technique.

Key words: Aniline, Propylene oxide, In situ FTIR, FTIR microscopic image

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LI Mei-Chao^1,2*, HU Jia-Qi², LIU Yan-Na², MA Chun-An². Studies on the Mechanism of Copolymerization of Aniline and Propylene Oxide and Characterization of Copolymer via FTIR Technique[J]. Chem. J. Chinese Universities, doi: .

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Studies on the Mechanism of Copolymerization of Aniline and Propylene Oxide and Characterization of Copolymer via FTIR Technique

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