1. Center for Layered
Polymeric Systems (CLiPS) and Department of Macromolecular Science
and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
2. College of Polymer Science and Engineering, State Key Laboratory
of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
3. Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, Michigan 48859, United States