H. Tachimori et T. Masuda, SYNTHESIS AND PROPERTIES OF A POLY(DIPHENYLACETYLENE) CONTAINING CARBAZOLYL GROUPS, Journal of polymer science. Part A, Polymer chemistry, 33(12), 1995, pp. 2079-2085
1-(p-N-Carbazolylphenyl)-2-phenylacetylene (p-CzDPA) was polymerized b
y TaCl5-co-catalyst systems (cocatalysts: n-Bu(4)Sn, Et(3)SiH, and 9BB
N) to produce acetone-insoluble polymers in about 60-70% yields. Poly(
p-CzDPA) was a yellowish-orange solid, most part of which was soluble
in toluene, chloroform, etc., and its weight-average molecular weights
were around 4 X 10(5). This polymer formed a tough film by solution c
asting, and was thermally very stable (the onset temperature of weight
loss in TGA in air 470 degrees C). The oxygen permeability coefficien
t of the polymer at 25 degrees C was lower than two barrers. The prese
nt polymer showed photoconductivity and redox activity. (C) 1995 John
Wiley and Sons, Inc.