Electrochemical copolymerization and characterization of dianilines linked by polyether bridge with aniline

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Date

2010

Authors

Tirkeş, Seha
Onal, Ahmet M.

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Publisher

Springer

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Chemical Engineering
(2010)
Established in 2010, and aiming to train the students with the capacity to meet the demands of the 21st Century, the Chemical Engineering Department provides a sound chemistry background through intense coursework and laboratory practices, along with fundamental courses such as Physics and Mathematics within the freshman and sophomore years, following preparatory English courses.In the final two years of the program, engineering courses are offered with laboratory practice and state-of-the-art simulation programs, combining theory with practice.

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Abstract

Copolymer of aniline and triethylene glycol bis(o-aminophenyl) ether was synthesized by constant potential electrolysis. Cyclic voltammogram of the copolymer films recorded in the monomer-free electrolytic solution revealed that the redox behavior of the films approaches to that of poly(triethylene glycol bis(o-aminophenyl) ether) with increasing amount of triethylene glycol bis(o-aminophenyl) in the feed ratio. Copolymerization was investigated by in situ recording the changes in the electronic absorption spectrum during electrolysis. The free standing copolymer film was characterized utilizing Fourier transform infrared spectrometer, and spectroelectrochemical behavior of the copolymer was investigated via in situ UV-vis spectroscopic technique. Besides the electron spin resonance study of the copolymer film, the different morphologies of the polymers were examined by scanning electron microscopy and the copolymerization was confirmed. The temperature dependence conductivity of the copolymer film was measured by four-probe technique in the temperature range of 100-300 K, and the calculated parameters showed that conduction mechanism fits to variable range hopping.

Description

Onal, ahmet muhtar/0000-0003-0644-7180

Keywords

Copolymer, Polyether bridge, Polyaniline, Variable range hopping

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Citation

7

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Q3

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Q2

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Volume

40

Issue

4

Start Page

865

End Page

873

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