1. School of Polymer Science and Engineering Center for Optoelectronic Materials and Device The University of Southern Mississippi Hattiesburg MS 39406 USA
2. Department of Civil and Environmental Engineering North Dakota State University Fargo ND 58108 USA
3. Department of Chemistry and Biochemistry University of Windsor Windsor Ontario N9B3P4 Canada
4. Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
5. Department of Chemical Engineering University of Mississippi Brandon MS 38677 USA