1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China
2. Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, China
3. Chengdu Institute of Organic Chemistry, Chinese Academy of Science, Center of Polymer Science and Technology, Chengdu, China
4. University of Chinese Academy of Sciences, Beijing, China