1. Center of Polymer Science and Technology; Chengdu Institute of Organic Chemistry; Chinese Academy of Science; Chengdu 610041 China
2. University of Chinese Academy of Sciences; No.19A Yuquan Road Beijing 100049 China
3. National Engineering Laboratory for Clean Technology of Leather Manufacture; Sichuan University; Chengdu 610065 China
4. Key Laboratory of Leather Chemistry and Engineering (Sichuan University); Ministry of Education; Chengdu 610065 China