1. Polymer Chemistry Laboratory, Department
of Applied Chemistry, Indian School of Mines, Dhanbad 826004, India
2. Physical Chemistry I, Department of Chemistry
and Biology, University of Siegen, 57076 Siegen, Germany
3. Disciplines of Inorganic Materials and
Catalysis, Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364021, India