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|Title:||Investigations on poly(aniline-co-o-toluidine)/polystyrene sulphonic acid composite|
Chemical oxidative copolymerization
Polystyrene sulphonic acid
|Abstract:||Poly(aniline-co-o-toluidine) is synthesized by free radical chemical oxidative copolymerization of aniline with o-toluidine using ammonium persulphate as an oxidant in protonic acid medium. This copolymer (COP) has been introduced into polystyrene sulphonic acid (PSSA) in 2:1, 1:1 and 1:2 compositions for the preparation of composite materials. The composite samples so obtained are characterized by UV-visible, FTIR, TGA, DSC, XRD and SEM techniques. The incorporation of copolymer in PSSA has been endorsed by FTIR analysis. TGA data reveal that the COP/PSSA (2:1) composite shows better thermal stability than COP/PSSA (1:1) and COP/PSSA (1:2) composites. Two step transitions are clearly reported from the DSC thermograms of COP/PSSA composites. SEM micrographs reveal distinct morphological features of these composites.|
|ISSN:||0975-1017 (Online); 0971-4588 (Print)|
|Appears in Collections:||IJEMS Vol.16(6) [December 2009]|
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