Title(Kor) 수전해용 MoPA 결합된 폴리에테르 에테르 케톤 고분자 복합막의 개발 및 특성
Title(Eng) Development and Charateriztion of Molybdophosphoric Acid Bonded Polyether Ether Ketone Polymer Composite Membrane for Water Electrolysis
Keyword PEM(고분자 전해질 막), SPEEK(술폰화 폴리에테르에테르케톤), Covalently cross-link(공유 가교 결합), Proton conductivity(수소 이온 전도도)
Author(Kor) 김민진1⋅김보영1⋅문상봉2⋅정장훈1,†
Author(Eng) MIN JIN KIM1, BO YOUNG KIM1, SANG-BONG MOON2, JANG HOON CHUNG1,†
Date 2017-08
Attach file 03-17-07-25(김민진) 338.pdf
Page Page. 338~344
Abstract(Kor)
Abstract(Eng)
Polyoxometal molybdophosphoric acid (MoPA) bonded polyether ether ketone (PEEK) composite membrane for water electrolysis has been investigated. The composited membrane, covalently cross linked (CL) sulfonated polyether ether ketone (SPEEK) with a bonded MoPA, was prepared in sulfonation of PEEK, cross linkage reaction with 1,4-diiodobutane, and addition with MoPA. PEEK was covalently cross-linked with 1,4-diiodobutane to improve mechanical strength and was added with MoPA to increase proton conductivity. MoPA should be fixed to back bone of SPEEK to prevent bleeding out. Therefore, the carbonyl group of SPEEK was reduced with NaBH4 and 3-isocyanatepropyltriethoxysilane (ICPTES) was added. The MoPA bonded composite was produced in the reaction of MoPA with 3-mercaptopropyltrimethoxvsilane (MPTMS). In conclusion, MoPA bonded CL-SPEEK composite membrane featured 0.129 S/cm of proton conductivity at 80℃, and 2,156 hours of chemical stability in Fenton test. These properties are better than those of membranes of other SPEEK system.



목록 뒤로가기