A new donor–acceptor type conjugative poly{2-[4-(1-cyanoethenyl)phenyl]-3-(3,4-didodecyloxythiophen-2-yl)prop-2-enenitrile}: Synthesis and NLO studies

Hegde, Pramod Kumar; 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/2289/4018

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DC Field	Value	Language
dc.contributor.author	Hegde, Pramod Kumar	-
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	2011-04-08T07:42:39Z	-
dc.date.available	2011-04-08T07:42:39Z	-
dc.date.issued	2010-08	-
dc.identifier.citation	Synthetic Metals, 2010, Vol.160, p1712	en
dc.identifier.issn	0379-6779	-
dc.identifier.uri	http://hdl.handle.net/2289/4018	-
dc.description	Restricted Access.	en
dc.description.abstract	This research article describes a technique to synthesize a new donor–acceptor type conjugated polymer carrying cyanophenylenevinylene and 3,4-didodecyloxy thiophene moieties, as an effective optical limiting material. It also includes the evaluation of its linear and nonlinear optical properties and electrochemical studies. The new polymer, viz., poly{2-[4-(1-cyanoethenyl)phenyl]-3-(3,4-didodecyloxythiophen-2-yl)prop-2-enenitrile} (P1) has been synthesized starting from 2,2′-sulfanediyldiacetic acid and diethyl ethanedioate through multistep reactions. In the final step, the polymerization was brought about by Knovenagel condensation. The newly synthesized intermediate, monomer and the polymer (P1) have been characterized by different spectroscopic techniques followed by elemental analysis. Its optical and electrochemical properties are investigated by UV–vis, fluorescence spectroscopy and cyclic voltammetric studies, respectively. The red colored polymer has a well defined structure, good thermal stability and a band gap of 1.78 eV. It emits green fluorescence both in solution and in film state. The third-order nonlinear optical property (NLO) of the polymer was studied by the Z-scan technique. The measurements were performed at 532 nm with 5 ns laser pulses using samples in solution form. An absorptive nonlinearity of the optical limiting type was found in this polymer, which is due to the combined action of saturable absorption and excited state absorption processes. These studies revealed that polymer P1 is a promising material for optical limiting applications.	en
dc.language.iso	en	en
dc.publisher	Elsevier B.V.	en
dc.relation.uri	http://dx.doi.org/10.1016/j.synthmet.2010.06.006	en
dc.rights	2010 Elsevier B.V.	en
dc.subject	Conjugated polymer	en
dc.subject	Cyanophenylenevinylene	en
dc.subject	3,4-Didodecyloxythiophene	en
dc.subject	NLO	en
dc.subject	Saturable absorption	en
dc.title	A new donor–acceptor type conjugative poly{2-[4-(1-cyanoethenyl)phenyl]-3-(3,4-didodecyloxythiophen-2-yl)prop-2-enenitrile}: Synthesis and NLO studies	en
dc.type	Article	en
Appears in Collections:	Research Papers (LAMP)

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