| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.620 |
| 발표분야 | 기능성 고분자 |
| 제목 | Preparation and characterization of sulfonated poly(aryl ether sulfone) blend membranes for DMFC |
| 초록 | Rapid advances in the fuel cell industry have led to an increasing demand for novel proton exchange membrane (PEM) with enhanced performance. The current NafionTM-like perfluorinated ionomer membranes have been applied as PEM due to their high proton conductivity and excellent chemical/mechanical stability, but still face significant technology problems, such as high cost, reduced conductivity at high temperature, and high methanol permeability, that have to be overcome. Recently, acid-base complexation method revealed an effective approach to development of proton-conducting membranes. It was known that the interaction between the polymers takes place by formation of hydrogen bonds and by proton-transfer from the acidic to the basic group [1-2]. In this works, we synthesized the sulfonated poly(aryl ether sulfone) (sPAES) as a acidic polymer and poly(aryl ether benzimidazole) (PAEBI) as a basic polymer. The acid-base polymer blend membranes will be discussed in terms of the proton conductivity, water-uptake and methanol permeability etc. Fig.1 Proton conductivities of sulfonated PAES/PBI blend membranes Reference 1. Jochen A, Kerres, Jounal of Membrane Science 185 (2001) 3-27 2. J. Kerres, A. Ullrich, Separation and Purification Technology 22-23 (2001) 1-15 |
| 저자 | 박형수1, 김형중2, 이재흥1, 홍영택1 |
| 소속 | 1한국화학(연), 2공주대 |
| 키워드 | acid-base blending; poly(aryl ether sulfone)copolymer; ion conductivity; methanol permeability |
