Sh. Jin et al., Synthesis and characterization of side chain liquid crystalline polymer with a polythiophene backbone, EUR POLYM J, 35(1), 1999, pp. 89-94
Poly{3-(4-methoxy-4'-hexyloxybiphenyl)oxymethlthiophene} (PolyMHOT) has bee
n prepared to examined the effect of liquid crystalline properties on the c
onducting polymer structure. This monomer exhibited enantiotropic smectic l
iquid crystalline mesophase. Polymerization was carried out by chemical and
electrochemical methods. In chemical method, polymer yield were quite high
and the polymerization required 3 eq. of oxidant to monomer, In the electr
ochemical procedure, the monomer exhibits an anodic peak due to the formati
on of radical cation with onset potential about 1.10 V and form electroacti
ve polymer film. However, poly(MHOT) was insoluble organic solvents and not
observed liquid crystalline properties due to small portion of crosslinked
polymer structure and inherently rigid polythiophene backbone. (C) 1998 El
sevier Science Ltd. All rights reserved.