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

Abstract

Poly(acryl amide)s containing INC moiety in the side chain were prepared by radical polymerization using 6-(4-acryloylaminobenzoylamino)-1,7-dioctylindolo[3,2-b]carbazole (AAINC) as a novel monomer. The obtained polymers exhibited the good solubility and the high thermal stability, where Tg and Td5 of the homopolymer of AAINC were over 200℃ and 400℃, respectively. In addition, Tg of copolymers of AAINC with N-(p-tolyl)acrylamide increased as the INC content increased. It was found that the HOMO, LUMO levels and the energy gap of AAINC and polymers showed the similar values as those of INC, and the UV-Vis absorption and fluorescence spectra of these polymers were also similar to the tendency of photonic property of INC. Furthermore, the fluorescence intensity of these polymers was higher than that of the monomer, AAINC. Especially, the copolymer having 5% INC content showed the higher fluorescence intensity than the copolymers having the higher INC content.

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