Heterogeneous sulfonation method for preparing sppesk membrane metarial

摘要

Based on comprehensive patents, a series of poly (phthalazinone ether sulfone ketone)s(PPESK) were synthesized. These polymers, whose glass transition temperatures are 263-305 degree and linear expansion coefficients are small, show excellent comprehensive properties and outstanding thermostabilities. For gas separation, membranes made up of PPESK have shown good separation and permeation properties.