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Synthesis of novel polymers containing cyclobutadiene thiophene and alkyne units: polymeric organometallic mesogens **
Author(s) -
Altmann Markus,
Enkelmann Volker,
Lieser Günther,
Bunz Uwe H. F.
Publication year - 1995
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.19950070809
Subject(s) - materials science , cyclobutadiene , thiophene , polymer , lyotropic , group 2 organometallic chemistry , alkyne , polymer chemistry , crystallization , phase (matter) , liquid crystalline , organic chemistry , molecule , chemistry , composite material , catalysis
A new class of organometallic liquid‐crystalline rigid‐rod polymers containing thiophene (see Figure) are reported and it is shown how their phase behavior can be tuned through variation of the side groups. The crystallization of the compound shown in the Figure proceeds through a transient lyotropic smectic state, a state hitherto unknown in polymeric organometallic systems.