Affiliation: | a Advanced Materials and Ceramics Division, MMG, PCM, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, India b Polymers and Special Chemicals Division, PCM, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, India c Polymers and Special Chemicals Group, PCM, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, India |