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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/11772

Title: An Efficient Acid-Induced Conversion of Dithiocarbamate Precursor Polymers into Conjugated Materials
Authors: DILIEN, Hanne
VANDENBERGH, Joke
BANISHOEIB, Fateme
ADRIAENSENS, Peter
CLEIJ, Thomas
LUTSEN, Laurence
VANDERZANDE, Dirk
Issue Date: 2011
Publisher: AMER CHEMICAL SOC
Citation: MACROMOLECULES, 44 (4). p. 711-718
Abstract: An acid-induced conversion method for dithiocarbamate precursor poly(thienylenevinylene) (PTV) and poly(phenylenevinylene) (PPV) derivatives is presented, which has the advantage that it can be executed at moderate temperatures. The lower conversion temperature avoids possible thermal degradation of the polymer chromophore structure, and therefore conjugated polymers with a higher effective conjugation length can be obtained. This process was studied using UV-vis and FTIR spectroscopy. The obtained results indicate that trifluoroacetic acid yields a more defect-free structure as compared to benzenesulfonic acid which induces degradation after prolonged reaction times. A tentative mechanism is proposed in which the formation of an intermediate carbenium ion is part of the rate-limiting step. It also implicates a competition between elimination and substitution reactions depending on specific reaction conditions.
Notes: [Dilien, Hanne; Vandenbergh, Joke; Banishoeb, Fateme; Adriaensens, Peter; Cleij, Thomas J.; Vanderzande, Dirk J. M.] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Lutsen, Laurence; Vanderzande, Dirk J. M.] IMEC, Div IMOMEC, B-3590 Diepenbeek, Belgium. dirk.vanderzande@uhasselt.be
URI: http://hdl.handle.net/1942/11772
DOI: 10.1021/ma1025384
ISI #: 000287391100006
ISSN: 0024-9297
Category: A1
Type: Journal Contribution
Validation: ecoom, 2012
Appears in Collections: Research publications

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