. The rise in the weight residues above 700C suggests the successful incorporation of silica contents that ultimately enhance the thermal stability of hybrid membranes (Table 2). The increase in the thermal stability is quite evident from Fig. 7b that shows the maximum peak value Fig. 4. of thermal degradation (Td) for the membranes. It is obtained by taking the derivatives of change in consecutive weights to the heating rate and then plotting against temperature. Improvement in the thermal stability occurred due to their strong interaction among the organic materials and inorganic fillers that formed a chemical bonded network structure in hybrids