Novel poly (3, 4-dialkoxythiophene) s carrying1, 3, 4-oxadiazolyl-biphenyl moieties: synthesis and nonlinear optical studies

Pramod Kumar, Hegde; Adhikari, A.V.; Manjunatha, M.G.; Suchand Sandeep, C.S.; Philip, Reji

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4760

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DC Field	Value	Language
dc.contributor.author	Pramod Kumar, Hegde	-
dc.contributor.author	Adhikari, A.V.	-
dc.contributor.author	Manjunatha, M.G.	-
dc.contributor.author	Suchand Sandeep, C.S.	-
dc.contributor.author	Philip, Reji	-
dc.date.accessioned	2012-06-22T12:24:04Z	-
dc.date.available	2012-06-22T12:24:04Z	-
dc.date.issued	2011	-
dc.identifier.citation	Polymer International, 2011, Vol.60, p112	en
dc.identifier.issn	0959-8103	-
dc.identifier.issn	1097-0126 (Online)	-
dc.identifier.uri	http://hdl.handle.net/2289/4760	-
dc.description	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)	en
dc.description.abstract	Twonewdonor–acceptor typesofpolymer,poly{2-(biphenyl-4-yl)-5-[3,4-dialkoxy-5-(1,3,4-oxadiazol-2-yl)thiophen-2-yl]-1,3,4- oxadiazole}s, were synthesized starting from 2,2_-sulfanediyldiacetic acid and diethyl ethanedioate through multi-step reactions. The polymerization was carried out via the polyhydrazide precursor route. The optical and charge-transporting properties of the polymerswere investigated using UV-visible and fluorescence emission spectroscopic and cyclic voltammetric studies. The polymers showed bluish-green fluorescence in solutions. The electrochemical band gaps of the polymers were determined to be 2.16 and 2.22 eV. The nonlinear optical properties of the polymers were investigated at 532 nm using the single-beam Z-scan technique with nanosecond laser pulses. The polymers showed strong optical limiting behaviour due to effective three-photon absorption. The values of the three-photon absorption coefficients for the polymers were found to be 9 × 10−24 and 17 × 10−24 m3 W−2, which are comparable to those of good optical limitingmaterials._c 2010 Society of Chemical Industry	en
dc.language.iso	en	en
dc.publisher	Wiley-Blackwell	en
dc.relation.uri	http://dx.doi.org/10.1002/pi.2919	en
dc.rights	2011 Wiley-Blackwell	en
dc.title	Novel poly (3, 4-dialkoxythiophene) s carrying1, 3, 4-oxadiazolyl-biphenyl moieties: synthesis and nonlinear optical studies	en
dc.type	Article	en
Appears in Collections:	Research Papers (LAMP)

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