synthesis of thermoplastic polyurethane membranes with different molar ratios and investigation of their co2/n2/h2 gases permeability

Thermoplastic polyurethanes (tpu) have many applications, such as biomedical applications, membranes, etc. in this study, tpus were synthesized with different molar ratios of precursors. ftir analysis was used to determine functional groups and evaluate the chemical structure of tpus. dsc analysis was used to study the thermophysical properties. the permeability of h2, n2, and co2 gases at 3 atm pressure was investigated for samples.