SINGLE PHASE HYPROPHILIC POLYIMIDE COMPOSITE FILM WITH EXCELLENT FOULING RESISTANCE, A METHOD OF MANUFACTURING THE FILM AND A FILTER SEPARATOR MANUFACTURED BY USING THE SAME

摘要

PURPOSE: A polymer film is provided to improve water permeation without the degradation of a solute removal ratio compared with an existing polyimide film, to reduce membrane fouling, and to improve an ultrafiltration process and a precision filtration process.;CONSTITUTION: A single phase hyprophilic polyimide composite film comprises (a) a polyimide compound including a component represented by chemical formula 1 or 2, and (b) a polymer of hydrophilic and hydrophobic monomers. In chemical formula 1 and 2, R1 and R2 are independently hydrogen, hydroxyl group, C1~C50 carbon compound or C6-C50 aromatic compound.;COPYRIGHT KIPO 2010