Abstract
CONCLUSIONS (1) Polycondensation in pyridine has been used to obtain unsaturated linear polycarbonates based on phosgene and mixtures, of various compositions, of 2,2-di-(4-hydrox yphenyl) propane and 2,2-di-(4-hydrox y-3-allylphenyl) propane; by chemical transitions under various conditions, these are capable of being transformed into an infusible and insoluble state. (2) Some properties of films obtained from unsaturated polyearbonates have been determined. Translated by G. F. MODLE~
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