Photothermal Bulk Polymerization Of Several Heterocyclic Compounds

Since the discovery of conductive polyacetylene,polyaniline,polypyrrole,polythiophene and their derivatives have been developed one after another,and the synthesis methods of these conjugated polymers are becoming more and more mature.This paper mainly introduces the solid-state photopolymerization of polythiophene derivatives and solid-state thermal polymerization of polypyrrole derivatives.This paper aims to make polythiophene and polypyrrole derivatives be modified and synthesized through reasonable molecular design,so as to expand their applications in the field of photoelectricity and sensors.The main contents include two parts:1.In the first part,in the platform of Thiophene-CH(Ph)-Thiophene,push-pull electronic groups were introduced in phenyl group and then these monomers were subjected to UV-polymerization.Due to different colors of polymers,these monomers can be employed as cartoon painting.2.In second part,the pyrrole derivatives were synthesized by C-N coupling method.The pyrrole derivative containing of benzo[1,2,5]thiadiazole has strong fluorescence.Accordingly,it was explored as Fe³⁺and Cr⁶⁺fluorescence sensors with excellent performance.At the same time,the polymer with high degree of polymerization was obtained by solid state thermal polymerization.Furthermore,by introducing amide bond to form intermolecular hydrogen bond,the monomer that can easily form low molecular weight gels,which broadens the application field of pyrrole derivatives.