Thermo-oxidative Degradation of Poly alkane imide

3 Thermo-oxidative Degradation of Poly(alkane imide) [12-29] 

4 Thermo-oxidative Degradation of Polysulfones, Polyesterketones, Liquid-Crystal Copolyesters [21, 30-39] 

As chemical shifts of neighbouring ring atoms C differ by -10 ppm, the difference in 7t-electron density reaches 0.055 e at the average proportionality coefficient of 180 ppm per electron. Aromatic radicals also display polar effects of p-substituents. PSF strnctnre, as well as the one of polyestersulfones (PSF purely aromatic homologues, the ones based 

In the last 10-15 years, liquid-crystal aromatic polyesters (TCP) were of special interest, which above all was associated with the discovery of their ability to self-reinforce when melted. This enabled preparation of high accuracy and size stable articles with low coefficients of thermal shrinkage. 

Special interest in these polymers is stipulated by intensive progress in computer technology. In the last 5-10 years, a great list of publications concerning structure and properties of LCP was presented. However, there is little information on thermoresistance and specific features of ECP degradative behaviour. Authors have studied degradative transformations 

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