Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/9843
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dc.contributor.authorSharma, Shalini-
dc.contributor.authorKumar, D-
dc.date.accessioned2010-07-02T05:28:55Z-
dc.date.available2010-07-02T05:28:55Z-
dc.date.issued2010-06-
dc.identifier.issn0975-1017 (Online); 0971-4588 (Print)-
dc.identifier.urihttp://hdl.handle.net/123456789/9843-
dc.description231-237en_US
dc.description.abstractThe polyaniline and alkyl substituted polyanilines have been synthesized by chemical polymerization method and then characterized by using UV-visible spectrophotometer in different solvents such as propionic acid, acetic acid, formic acid and N-methyl-2-pyrrolidone. UV-visible data reveal that the nature (blue or red shift) and amount (i.e., strong or weak) of the shifts of polyanilines depends on the solvents used and the presence of alkyl substituents. The solvatochromic behaviour of these polymers has been studied in different solvents in order to explain all the shifts qualitatively. A comparative energy diagram is also presented to show the effect of the solvents on conducting polymers giving mainly two transitions, i.e., p-p* and n-p*. The band gap values have been calculated for all these conducting polymers by Tauc’s method and these band gap values are found in the range 2.38-3.16 eV. The significance of present study evolves a trend in solvatochromic shifts of polyaniline and alkyl substituted polyanilines in different solvents.en_US
dc.language.isoen_USen_US
dc.publisherCSIRen_US
dc.sourceIJEMS Vol.17(3) [June 2010]en_US
dc.subjectConducting polymeren_US
dc.subjectPolyanilinesen_US
dc.subjectSolvatochromic shiften_US
dc.subjectBand gapen_US
dc.titleStudy on solvatochromic behaviour of polyaniline and alkyl substituted polyanilinesen_US
dc.typeArticleen_US
Appears in Collections:IJEMS Vol.17(3) [June 2010]

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