Journal of Materials Science and Engineering with Advanced TechnologyAuthor's: Isao Yamaguchi and Jun Mishima
Pages: [127] - [144]
Received Date: March 18, 2011
Submitted by:
The Pd-complex-catalyzed polymerization of
2,7-dibromo-9,9-dihexylfluorene, 2,5-dibromo-3-hexylthiophene, and
1,4-dibromo-2,5-dioctyloxybenzene with 
afforded poly(aryleneethynylene)s (PAEs),
Polymer-1, Polymer-2, and Polymer-3, respectively; the
Pd-complex-catalyzed polymerization of the same with
1,3-diethynylbenzene afforded PAEs, Polymer-4, Polymer-5, and
Polymer-6, respectively. A model compound, Model-1, was synthesized by
the reaction of 
with ethynylbenzene in a 1:2 molar ratio.
UV-vis measurements revealed that the conjugation system of the
polymer chain is interrupted at the m-phenylene group.
The polymers and the model compound were photoluminescent in solution.
The polymers received electrochemical oxidation in film; these
polymers exhibited electrochromism and showed good thermal stability.
poly(aryleneethynylene), oligo(p-phenylene), m-phenylene linkage photoluminescence.
