| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Synthesis and characterizations of phenolphthalein anilide based poly(ether sulfone) block copolymers functionalized with quaternary ammonium and imidazolium cations for anion exchange membrane materials |
| 초록 |
A class of phenolphthalein anilide based poly(ether sulfone) (PES) block copolymers containing pendent quaternary ammonium (QA) and imidazolium (IM) groups were prepared as anion exchange membranes by reaction involving nucleophilic substitution, benzylic bromination, quaternization and anion exchange with hydroxide ions. Highly reactive hexafluorobenzene (HFB) as a linkage group was utilized for relatively low temperature (e.g., 105 oC) coupling between hydrophobic and precursor hydrophilic oligomer blocks. The transparent and flexible membranes of PES-QA and PES-IM obtained by solution casting showed hydrophobic/hydrophilic phase separated morphology in the atomic force microscopy. The water uptake, swelling ratio, conductivity, and chemical stability of the resultant copolymer membranes were also investigated. The hydroxide conductivity of the ionomer membranes (IEC～1.6 mequiv./g) was 5-19 mS/cm and 2-11 mS/cm at 30 oC and 80 oC respectively. |
| 저자 |
Aruna Kumar Mohanty1, Nowon Kim2, 백현종1
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| 소속 |
1Pusan National Univ., 2Dong-eui Univ. |
| 키워드 |
Anion exchange membrane; block copolymer; hydroxide conductivity
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| E-Mail |
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