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US08809488B2 Carboxylated polymers of intrinsic microporosity (PIMs) with tunable gas transport properties 有权
具有可调气体传输性能的固有微孔(PIM)的羧基化聚合物

Carboxylated polymers of intrinsic microporosity (PIMs) with tunable gas transport properties
Abstract:
A film of a carboxylated polymer of formula (I): wherein the sum of x, y and z is an integer from 10 to 10,000 and degree of hydrolysis is 0.05 or greater provides gas separation materials in which the degree of hydrolysis may be used to tune the selectivity of the gases to an optimal required range. Such films may be prepared by casting a film of a polymer of formula (II): wherein n is an integer from 10 to 10,000, and hydrolyzing all or a portion of the —CN groups to form —COOH groups.
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