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1. (WO2015046774) THERMALLY REARRANGED POLY(BENZOXAZOLE-IMIDE) COPOLYMER SEPARATION MEMBRANE FOR MEMBRANE DISTILLATION AND PREPARATION METHOD THEREFOR

Pub. No.:    WO/2015/046774    International Application No.:    PCT/KR2014/008235
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Thu Sep 04 01:59:59 CEST 2014
IPC: B01D 71/64
Applicants: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
한양대학교 산학협력단
Inventors: LEE, Young Moo
이영무
LEE, So Young
이소영
KIM, Ji Hoon
김지훈
LEE, Moonjoo
이문주
LEE, Wonhyo
이원효
Title: THERMALLY REARRANGED POLY(BENZOXAZOLE-IMIDE) COPOLYMER SEPARATION MEMBRANE FOR MEMBRANE DISTILLATION AND PREPARATION METHOD THEREFOR
Abstract:
The present invention prepares a thermally rearranged poly(benzoxazole-imide) copolymer membrane by preparing and heat-treating a hydroxyl group-containing polyimide-polyimide copolymer membrane, and applies the thermally rearranged poly(benzoxazole-imide) copolymer membrane to membrane distillation. The thermally rearranged poly(benzoxazole-imide) copolymer separation membrane prepared according to the present invention has high liquid entry pressure, low thermal conductivity, high permeate flow rate and good long-term stability as well as excellent thermal and chemical properties, and thus can be preferably applied to a membrane distillation process.