| Issue |
J. Chim. Phys.
Volume 95, Number 6, June 1998
|
|
|---|---|---|
| Page(s) | 1165 - 1167 | |
| DOI | https://doi.org/10.1051/jcp:1998238 | |
J. Chim. Phys. Vol. 95, N°6 p. 1165-1167
Fractionated regioregular poly(3-hexylthiophene). Spectroscopic and electrochemical studies
M. TrznadelCEA-Grenoble, Département de Recherche Fondamentale sur la Matière Condensée, Laboratoire de Physique des Métaux Synthétiques, 17 rue des Martyrs, 38054 Grenoble, France
Abstract
Regioregular poly(3-hexylthiophene) was obtained and fractionated into four fractions of different molecular weights (Mn)
exhibiting low polydispersity coefficients. UV-VIS spectra confirm the
increase of average conjugation length with the increase of the Mn of fractions. Voltammetric curves of fractions corroborate
UV-VIS results and show that the contribution of poorly conjugated
segments decrease with the Mn.
Résumé
Le poly(3-hexylthiophene) régiorégulier a été synthétisé et fractionné en quatre fractions de masses moléculaires (Mn) différentes
présentant de faibles indices de polymolécularité. Les spectres
UV-VIS confirment l'augmentation de la longueur de conjugaison moyenne avec l'accroissement de Mn. Les voltammogrammes des
fractions confirment les résultats UV-VIS et montrent que la
contribution des segments faiblement conjugués diminue avec l'augmentation de Mn.
Key words: poly(3-alkylthiophenes) -- regioregular polymer -- fractionation
Contents
© EDP Sciences 1998
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