Mehdi Derradji is a researcher in the College of Materials Science and Chemical Engineering at Harbin Engineering University, China. He is a specialist in the field of high performance polymers including epoxy, benzoxazine, and phthalonitrile resins and composites.Jun Wang is a Professor in the College of Materials Science and Chemical Engineering at Harbin Engineering University, China. He is a specialist in the field of high performance polymers including epoxy, benzoxazine, and phthalonitrile.Wenbin Liu is a Professor in the College of Materials Science and Chemical Engineering at Harbin Engineering University, China. His research interests are in the areas of synthesis, properties, and relationship between structure and properties of high performance resins such as Epoxy Resins and polybenzoxazines, polymerization reaction mechanisms and curing kinetics of polymers, and synthesis, structure and function of structure-controllable polymers.