GAS SEPARATION MEMBRANES FROM CHEMICALLY AND UV TREATED POLYMERS OF INTRINSIC MICROPOROSITY

摘要

The invention is a process of making a chemically and UV treated polymer of intrinsic microporosity membrane comprising preparing a polymer of intrinsic microporosity, chemically cross-linking said polymer of intrinsic microporosity with a cross-linking compound to produce a chemically cross-linked polymer of intrinsic microporosity and then treating said chemically cross-linked polymer with UV radiation for a period of time sufficient to provide a product membrane. This product membrane is useful in the separation of C3 and higher hydrocarbons, as well as CO₂, from natural gas and other gas streams.