화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터)
권호 15권 1호, p.24
발표분야 고분자
제목 Synthesis of Amphiphilic PVC-g-POEM Copolymer for Solid-State Dye-Sensitized Solar Cells
초록 An novel amphiphilic comb-like copolymer consisting of a poly(vinyl chloride) (PVC) backbone and poly((oxyethylene)9 methacrylate) (POEM) side chains, PVC-g-POEM was synthesized via ATRP. This comb copolymer was complexed with metal salt such as LiI and KI to form a polymer electrolyte. FT-IR and FT-Raman spectroscopy indicate that metal salts are dissolved in the ion conducting POEM domains of microphase-separated graft copolymer up to 10 wt% of salt concentration. Microphase-separated structure of the materials and the selective interaction of metal ions with POEM domains were revealed by TEM, WAXS andDSC. The maximum ionic conductivity of 4.4 10-5 S/cm at room temperature was achieved at 10 wt% of salt concentration, above which salts are present as less mobile species such as ion pairs and higher order ionic aggregates, as characterized by FT-Raman spectroscopy. These polymer electrolyte materials were applied to solid-state dye-sensitized solar cells and energy conversion efficiencies were measured.
저자 고종관1, 연승현2, 안성훈1, 노동규2, 김종학1
소속 1연세대 화공생명공학, 2수소연료전지 특성화 사업단
키워드 ATRP; PVP; POEM; Solar cell; Microphase-separated structure
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