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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2267

Title: Identification and Quantification of Polymerization Defects in 13C-Labeled Sulfinyl and Gilch OC1C10-PPV by NMR Spectroscopy
Authors: ROEX, Hilde
Issue Date: 2003
Citation: MACROMOLECULES, 36(15). p. 5613-5622
Abstract: By using selectively C-13-labeled sulfinyl and Gilch polymers, only noneliminated groups were demonstrated to be present in significant amounts (ca. 6.9%) in the sulfinyl conjugated OC1C10-PPV. By means of a two-step elimination procedure, this amount could be reduced to a level less than 0.5%. In the Gilch route on the other hand, a tolane-bisbenzyl unit was confirmed to be the main structural defect. Furthermore, noneliminated groups were clearly present. For both polymerization routes no indications for other types of defects such as cross-links or branching, were detected while strong indications for carbonyl type end groups were found. The nature of all "defects" was elucidated by applying liquid 1D and 2D NMR spectroscopy and the amount was calculated based on fully quantitative C-13 NMR spectra.
Notes: Limburgs Univ Ctr, Mat Res Inst, Dept SBG, B-3590 Diepenbeek, Belgium.Gelan, J, Limburgs Univ Ctr, Mat Res Inst, Dept SBG, Univ Campus,Bldg D,, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/2267
DOI: 10.1021/ma030025t
ISI #: 000184398600027
ISSN: 0024-9297
Category: A1
Type: Journal Contribution
Validation: ecoom, 2004
Appears in Collections: Research publications

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