Synthesis and Properties of New 2,6-Poly(phenylquinoline)s and Their Composites with 2,1,3-Benzothiadiazole

We synthesized 2,6-poly(phenylquinoline)s, the elementary polymer unit of which contained alkyl carbazole or alkyl indolo[3,2-b]carbazole moieties with C12 and C18 alkyl side chains at nitrogen atoms and the oxygen or phenylamine bridge group between the quinoline cycles. The synthesized polymers form heat-resistant coatings, for which the temperature for 5% weight loss is higher than 450°С. It is demonstrated that introduction of 10 wt % of 2,1,3-benzothiadiazole to the poly(phenylquinoline)s leads to an increase in the photosensitivity of the composite as compared with the original polymers. Structural-morphological studies of the synthesized poly(phenylquinoline)s and their composites were carried out.