Heteroaromatic polymers synthesized

Figure 6. Novel conjugated heteroaromatic polymers synthesized by redox elimination.

In principle, it should be possible to prepare polyacetylene and its derivatives by coupling reactions of appropriately 1,2-substituted olefins. In practice this route does not appear to have been explored and step-reactions have mostly been applied to prepare aromatic and heteroaromatic polymers. Some of the more important syntheses ae reviewed below others have been reviewed by Feast29). 

Heteroaromatic ring stmctures can also be incorporated into poly(arylene vinylene) stmctures using the same precursor polymer method shown for PPV. Poly(thienylene vinylene) (13) (113—118) and poly(furylene vinylene) (14) (119,120) have been prepared in this manner. In addition, alkoxy-substituted poly(thienylene vinylenes) (15) (119,121) have been synthesized. Various copolymers containing phenjiene, thienylene, and furylene moieties have also been studied (120,122,123). 

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