Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2865
Title: Synthesis of electron-rich versus electron-poor poly {[1,4-phenylene]-[1-(n-alkylsulfinyl)ethylene]}s via the sulfinyl precursor route in different organic solvents
Authors: ADRIAENSENS, Peter 
Van der Borght, M
HONTIS, Lieve 
Issaris, A
van Breemen, A
de Kok, M
VANDERZANDE, Dirk 
GELAN, Jan 
Issue Date: 2000
Publisher: ELSEVIER SCI LTD
Source: POLYMER, 41(19). p. 7003-7009
Abstract: In this paper new insights in the mechanism of the sulfinyl precursor route towards poly(phenylene vinylene) (PPV) derivatives are presented by studying the polymerisation reaction in various solvents and by evaluating the influence of both electron donating and withdrawing substituents. A strong indication is presented that in alcohols the expulsion of the leaving group is involved in the rate determining step of the reaction, the formation of the p-quinodimethane intermediate, which further also depends on the type of solvent and substituents. Moreover, two polymerisation mechanisms can occur simultaneously: a radical mechanism that results in high molecular weight polymers and an anionic mechanism yielding low molecular weights. Competition between both mechanisms strongly depends on the solvent and type of substituents. (C) 2000 Elsevier Science Ltd. All rights reserved.
Notes: Univ Limburg, Div Chem, Inst Mat Res, Lab Organ & Polymer Chem, B-3590 Diepenbeek, Belgium.Vanderzande, D, Univ Limburg, Div Chem, Inst Mat Res, Lab Organ & Polymer Chem, Univ Campus, B-3590 Diepenbeek, Belgium.
Keywords: poly(phenylene vinylene)s; synthesis; polymerisation mechanism
Document URI: http://hdl.handle.net/1942/2865
DOI: 10.1016/S0032-3861(00)00071-9
ISI #: 000087802800002
Category: A1
Type: Journal Contribution
Validations: ecoom 2001
Appears in Collections:Research publications

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