Preparation and Characterization of Poly(ether ketone) with Allyl Side Group

A novel type of poly(aryl ether ketone) bearing pendant allyl group (PEK-L-A) was prepared, first by SN2 nucleophilic polycondensation from phenolphthalin and 4,4’-difluorobenzophenone to prepare polyaryletherketone bearing pendant carboxyl group （PEK-L）, followed by esterfication reaction with 2 hydroxyethyl acrylate (HEA). The ratio of allyl side group could be controlled by altering the amount of HEA. The structure and properties of PEK-L-A were characterized and tested by FT-IR, 1H-NMR, DSC etc. Results showed that the heat resistant temperature of coating layer with PEK-L-A as matrix resin after UV curing was up to 300 ℃, and impact strength higher than 100 kg·cm.