Premium
The influence of alkoxy side chains on the conformational flexibility of oligo‐ and polythiophenes
Author(s) -
Meille Stefano V.,
Farina Alessandra,
Bezziccheri Federica,
Gallazzi Maria C.
Publication year - 1994
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19940061109
Subject(s) - alkoxy group , materials science , polymer , alkyl , side chain , solubility , rigidity (electromagnetism) , yield (engineering) , polymer chemistry , hildebrand solubility parameter , organic chemistry , chemistry , composite material
Alkoxy‐substituted thiophenes have been shown to yield polymers with a reduced bandgap. An X‐ray investigation of two symmetrical pentoxy‐substituted 2,2′‐bithienyls is reported, and their structure and packing described. It is suggested that the extra rigidity and packing stability of the alkoxythiophene oligomers and polymers accounts for their lower solubility and higher melting points compared to their alkyl‐substituted analogues.