1. Polymer Science & Technology DivisionCentral Leather Research Institute (CSIR – CLRI) Chennai 600 020 India
2. Macromolecular Research Team, Department of Inorganic ChemistryUniversity of Yaounde‐I, 812‐Yaounde Cameroon
3. Bristol Composites Institute (ACCIS), School of Civil, Aerospace, and Mechanical Engineering, Queen's BuildingUniversity of Bristol, University Walk Bristol BS8 1TR UK