Synthesis and Characterization of Acrylic Acid Modified o-Cresol Formaldehyde Epoxy Resin

A special o-cresol-formaldehyde epoxy acrylate photosensitive resin was synthesized by o-cresol-formaldehyde epoxy resin reacting with acrylic acid.The influences of catalysts,temperature and time on the acrylic conversion rate were studied and the optimum reaction condition was offerd.The acrylic conversion rate increase to 98.80% under the condition as follows:the diallyl/epoxy matrix=0.3∶1,temperature at 95℃,time 3 hours,weight of N,N-dimethylanilide 1%.