| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Synthesis and characterization of S-Copoly(phenylene oxide) grafted polystyrene by atom transfer radical polymerizations |
| 초록 |
A series of comb-like Copoly(phenylene oxide)s (CoPPO) graft copolymers with controlled grafting density and length of grafts were synthesized by atom transfer radical polymerization (ATRP). The Co-α-bromo-poly(2,6-dimethyl-1,4-phenylene oxide)s (BrCoPPO) were used as macroinitiators to polymerize vinyl monomers and the graft copolymers carrying polystyrene(PS) as side chains were synthesized and characterized by NMR, FTIR, GPC, DSC and TGA. The composition dependent glass-transition temperatures (Tg) of CoPPO-g-PS exhibited good correlation with theoretical curve in Couchman equations except for the cases of low PS block content(＜40 mol%) copolymers in which a positive deviation was observed due to enhanced molecular interactions. The increase in monomer/initiator ratio led to the increase of degree of polymerization and the decrease of polydispersity. Sulfonated CoPPO-g-PS membranes was measured in terms of water uptake, proton |
| 저자 |
진현미, 서동완, 임영돈, 이순호, 모니룰, 장호현, 김환기
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| 소속 |
건국대 |
| 키워드 |
PEMFC; Fuel Cell; polymer; membrane
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| E-Mail |
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