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Electropolymerisation and characterisation of nanosize conducting poly[( o ‐chloroaniline)‐ co ‐(4,4′‐diaminodiphenylsulfone)] on a polyaniline‐modified electrode
Author(s) -
Palaniappan Subramanian,
Manisankar Paramasivam
Publication year - 2010
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.2722
Subject(s) - electrosynthesis , copolymer , polyaniline , materials science , electrode , polymerization , polymer chemistry , amorphous solid , polymer , electrochemistry , conductive polymer , polypyrrole , fourier transform infrared spectroscopy , chemical engineering , composite material , chemistry , organic chemistry , engineering
An exciting methodology for the electrosynthesis of poly( o ‐chloroaniline) is proposed, based on the electrochemical polymerisation of o ‐chloroaniline (OCA) on a polyaniline‐modified electrode and copolymerisation of OCA with different compositions of biologically important 4,4′‐diaminodiphenylsulfone (DDS) on the same electrode. The copolymer electrosynthesised from an equimolar feed composition of OCA and DDS behaved the best among the other compositions employed for polymerisation. The UV‐visible and Fourier transform infrared spectral data obtained for this copolymer suggest the incorporation of DDS in the polymer chain. The X‐ray diffraction profile of the copolymer indicates a substantial amorphous nature of the as‐synthesised copolymer. Scanning electron micrographs recorded for the homo‐ and copolymer reveal distinctly different morphologies. The average grain size of the prepared copolymer as approximated from the micrographs is 80 nm. The procedure reported is found to be a very efficient method for electrochemically polymerising pristine OCA and poly(OCA‐ co ‐DDS) and the adopted strategy is the best so far reported for the electrochemical polymerisation of OCA on any electrode surface. Copyright © 2009 Society of Chemical Industry