수전해용 술폰화 폴리에테르 에테르 케톤과 고정된 TPA 고분자 복합막의 제조 및 특성

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 28; no. 1; pp. 17 - 23
• Main Authors: 정장훈(Jang-hoon Chung), 문상봉(Sang-bong Moon), 김보영(Boyoung Kim), 김민진(Minjin Kim), 윤영요(Youngyo Yoon), 차진산(Jinsan Cha)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 2017
• Subjects: 기계공학; 수소 이온 전도도; PEMWE; Covalently linked; 고분자 전해질 막 수전해; Proton conductivity; SPEEK; 술폰화 폴리에테르에테르케톤; 공유 결합
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/KHNES.2017.28.1.17

Polyether ether ketone (PEEK) composite including tungstophosphoric acid(TPA) membranes have been intensively investigated for polymer electrolyte membrane water electrolysis (PEMWE) and thus covalently linked sulfonated polyether ether ketone (CL-SPEEK) with captured TPA composite membranes were prepared and characterized. Sulfonated polyether ether ketone (SPEEK) was prepared in sulfonation of PEEK and was cross-linked with 1,4 diiodobutane. The carbonyl group of SPEEK was reduced with $NaBH_4$ and 3-isocyanatepropyltriethoxysilane (ICPTES) was added. The TPA captured composite was prepared in reaction of TPA with 3-mercaptopropyltrime thoxysilane (MPTMS). The polymer composite membranes showed better thermostability and electrochemical properties than SPEEK. The membranes were prepared by sol-gel casting method. The polymer composite membrane featured 0.1285 S/cm of proton conductivity at $80^{\circ}C$ and outstanding durability.