Novel benzoxazine resin using polyethylene glycol modified lignin

Abstract

We synthesized modified lignin novolac type benzoxazine using polyethylene glycol modified lignin, a new forest-derived material, and evaluated the characteristics of modified lignin novolac type benzoxazine resin obtained by polymerization. As a result, modified lignin novolac type benzoxazine can be molded at a low temperature and in a shorter time than conventional bisphenol F type benzoxazine. In addition, modified lignin novolac type benzoxazine resin had excellent heat resistance, mechanical strength, electrical insulation and water resistance.