Syntheses and Properties of Polyamides Containing Indolocarbazole Moiety in the Main Chain

Abstract

In this study, we have attempted to prepare novel aromatic polyamides containing indolo[3,2-b]carbazole (INC) moiety in the main chain. For this purpose, the synthesis of an aromatic dicarboxyl compound containing INC moiety was carried out. Novel aromatic polyamides containing INC moiety in the main chain were prepared by the polycondensation of the dicarboxyl INC monomer with the four kinds of diamine monomers. The obtained polymers were soluble in aprotic polar solvents such as N,N-dimethyl acetamide and N-methyl-2-pyrrolidone. According to the thermal gravimetric analysis, the obtained polyamides exhibited the relatively high thermal stability and the high char yield nearly 50 % at 1000 °C in the thermal degradation. Furthermore, it was found from the evaluation of the photonic property that the UV-Vis absorption and fluorescence spectra of these polyamides showed the similar tendency of the photonic property of INC.

Synthesis of poly(acryl amide) containing indolo[3,2-<i>b</i>]carbazole moiety in the side chain

“…In our previous study, the preparations of several polymers containing INC moiety in the main chain or side chain were investigated and the thermal and photonic properties of these polymers were estimated [8][9][10][11][12]. 1-(4-vinylbenzyl)-7-octylindolo [3,2-b]carbazole (VINC-C8), and the copolymers of VINC-C8 with styrene or MMA were prepared by radical polymerizations, and the thermal and photonic properties were investigated.…”