1. College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 China
2. School of Applied and Chemical Engineering; Xichang College; Xichang 615053 China
3. State Key Laboratory of Polymer Materials Engineering of China; Sichuan University; Chengdu 610065 China
4. College of Aeronautics and Astronautics; Sichuan University; Chengdu 610065 China