STRUCTURAL EFFECTS IN POLY(3-ALKYLTHIOPHENE)S ON THE EXPOSITION TO POOR SOLVENT

Authors
CARONNA T CATELLANI M LUZZATI S MEILLE SV ROMITA V
Citation
T. Caronna et al., STRUCTURAL EFFECTS IN POLY(3-ALKYLTHIOPHENE)S ON THE EXPOSITION TO POOR SOLVENT, Macromolecular rapid communications, 18(10), 1997, pp. 939-943
Citations number
14
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular rapid communications → ACNP
ISSN journal
10221336
Volume
18
Issue
10
Year of publication
1997
Pages
939 - 943
Database
ISI
SICI code
1022-1336(1997)18:10<939:SEIPOT>2.0.ZU;2-I
Abstract
The exposure to pentane vapour of poly(3-alkylthiophene)s with differe nt alkyl chains produces a modification in the optical properties of t he thin films. The treatment induces a red-shift of the electronic abs orption maximum and the appearance of vibronic structure in the UV spe ctra. We have followed these changes with IR and Raman spectroscopies to monitor the modification of the backbone conjugation, and with X-ra y diffraction to evidence the structural order of the chains.