1. Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, P. R. China
2. Beijing Engineering Research Center of Advanced Elastomers, Beijing University of Chemical Technology, P. R. China
3. Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
4. Engineering Research Center of Elastomer Materials on Energy Conservation and Resources, Beijing University of Chemical Technology, P. R. China