Title: Chirality in poly(phenylene-alt-bithiophene)s: A comprehensive study of their behavior in film and nonsolvents
Authors: Koeckelberghs, Guy ×
Vangheluwe, Marnix
Persoons, Andre
Verbiest, Thierry #
Issue Date: Nov-2007
Publisher: Amer chemical soc
Series Title: Macromolecules vol:40 issue:23 pages:8142-8150
Abstract: New chiral, alternating copolymers of 2,5-dialkoxybenzenes and 3,3'-dialkoxy-2,2'-bithiophenes were prepared and their (chir)optical properties were studied. The polymers were prepared by a Stille coupling reaction and show high conjugation lengths in both solution and films. Fluorescence and UV-vis spectroscopy indicate that the polymers are present as rigid, highly conjugated polymer strands in solution. In a nonsolvent mixture, the polymers aggregate and, if chiral substituents are employed, supramolecular chirality is observed. In annealed films, very large Cotton effects are observed.
ISSN: 0024-9297
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
Polymer Chemistry and Materials
× corresponding author
# (joint) last author

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