Preparation, characterization, and performance of reactive phenolphthalein poly(aryl ether sulfone) tougheners highly compatible with epoxy resin
Chuan Yan,
HongHua Wang,
LiXin Song
et al.
Abstract:Aiming at the problem of phase separation between thermoplastic toughener and epoxy after curing, which leads to the reduction of mechanical properties, in this paper we improve the compatibility of the two phases by introducing reactive groups into the molecular chain of thermoplastic resins, thus improving the impact strength of the epoxy system. Phenolphthalein polyether sulfone (C‐PESC) with designable and controllable carboxyl group content was prepared via SN2 nucleophilic substitution copolymerization. … Show more
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