PROCESS FOR THE PREPARATION OF POLYPHENOL DERIVATIVES, DERIVATIVES OBTAINED BY THIS PROCESS, THEIR USE IN THE PREPARATION OF POLYMERS AND COPOLYMERS, AND THE COPOLYMERS THUS OBTAINED

摘要

The present invention relates to a process for the preparation of polyphenol derivatives, new derivatives obtained by this process and their use in the preparation of polymers and copolymers. This process consists of reacting a polyphenol with 1-allyloxy-2,3-epoxypropane of formula: in the presence of a catalyst constituted by a tertiary amine or an alkali hydroxide to obtain a polyphenol derivative having two reactive functions, i.e. allyl and hydroxyl at each end. Preferably, the phenols used are bisphenol A, bisphenol A derivatives, such as polysulphones or polycarbonates and phenol-formaldehyde resins. The derivatives obtained in this way having two reactive functions of different types at each end of their chain (hydroxyl and allyl) can participate in polymerization, copolymerization and/or crosslinking reactions.