Study On Preparation And Properties Of AZO-Polymers

The article was finished on the base of a lot of foreign and in-country papers. In our experiment, we have gained azo compounds with active functional groups by ways of diazotize-coinciding and nitryl deoxidized. And then get the azo-PAR with phase-transferring and. In the further study, we investigate the transesterification about PC with azo-PAR and azo compounds. And find that the azo-modified PC materials have photochromisming phenomena. Further more, we synthesized a kind of azo-PA with well solubility and good thermo stabilization, and then investigate its dynamics of photochromism.First we have tried different reaction conditions and find a best process for gain more azo-compounds. Melting point testing, FTIR, ~1HMNR and element analyzing was used to identify the constructer and the purity of the azocompounds. Second, two kinds of azo-PAR were prepared by phase-transferring and catalyzing process. And then we contrast the constructer, solubility and thermo performance of polymers. Then, we use azocompounds and polymers perform transesterification with PC.The next result from the FTIR proves the occurring of transesterification. Then we particular discuss the process of transesterification by the ways of ISC and get the conclusion that the separate position azo-PAR has a better effect than contra position azo-PAR. And the UV-test can be used to find its photochromism.By the theory of molecule structure design, we prepared a kind of azo-PA by solution- condense polymerization. The process of the polymerization was further studied by viscidity and the polymer was found with well solubility and good thermo stability by solution testing and DSC, DMA, TGA testing.With the azo-PA's photochromism, we account the velocity constant of its transform and proved its kinetics disciplinarian.