Synthesis of poly(arylene ether ketones) with terminal phenolic groupsстатья
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Дата последнего поиска статьи во внешних источниках: 24 октября 2016 г.
Аннотация:Poly(arylene ether ketones) with preset molecular weights (reduced viscosity from 0.2 to 0.82 dL g(-1)) containing terminal phenolic groups were synthesized by the reactions of 4,4-difluorobenzophenone with bisphenol A or phenolphthalein in the presence of K2CO3 ill N,N-dimethylacetamide. The influence of an excess of bisphenols on the molecular weights of the polymers obtained was studied. The structures of the polymers were confirmed by H-1 NMR spectroscopy. The molecular weight distributions of the polymers were determined.