Cost effective poly(urethane-imide)-POSS membranes for environmental and energy-related processes

摘要: The control of anthropogenic carbon dioxide (CO2) emissions is one the most challenging environmental issues facing industrialized countries because its implications to atmospheric CO2 levels and climatic change. Burning fossil fuels responsible for majority these and, therefore, there significant interest in developing technologies that will reduce emissions. membrane-based separation processes are not only cost effective environmentally friendly, but also with many novel polymeric materials available, offer much more versatility simplicity customized system designs. ability selectively pass component a mixture while rejecting others describes perfect device. We have synthesized set poly(urethane-imide)-POSS (PUI) by simple condensation reaction isocyanate terminated polyurethane (PU) prepolymer anhydride polyimide (PI) prepolymer. PUIs were characterized TGA, SEM, AFM analyses. Thermal stability PU was found increase introduction imide component. Gas permeation measurements studied O2, N2, gases employing different pressures using constant volume/variable pressure apparatus.