期刊
HIGH PERFORMANCE POLYMERS
卷 29, 期 3, 页码 266-271出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0954008316639366
关键词
Conducting polymer; infrared spectroscopy; polyaniline; UV-visible spectroscopy
Polyaniline (PANI), poly(o-anisidine), and poly[aniline-co-(o-anisidine)] were synthesized by chemical oxidative polymerization with potassium iodate as an oxidizing agent in a hydrochloric acid (HCl) medium. The self-doped, doped, and undoped forms of these polymers were characterized by infrared spectroscopy, ultraviolet-visible spectroscopy, and the conductivity method. The observed decrease in the conductivity of the copolymer and poly(o-anisidine) with respect to PANI was attributed to the incorporation of methoxy moieties into the PANI chain. The homopolymer attained conductivity in the range of 3.75 x 10(-3) to 7.40 S cm(-1) after doping with HCl. The conductivity of the undoped form of poly[aniline-co-(o-anisidine)] and poly(o-anisidine) was observed to be lower than 10(-5) S cm(-1). The conductivity of the polymer sample decreased in the following order: PANI poly[aniline-co-(o-anisidine)] -> poly(o-anisidine). The undoped form of poly[aniline-co-(o-anisidine)] had good solubility in common organic solvents.
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