| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Anomalous behavior of proton transport and dimensional stability of sulfonated poly(arylene ether sulfone) nonwoven/silicate composite proton exchange membrane with dual phase co-continuous morphology |
| 초록 |
In this study, anomalous behavior of proton conductivity and dimensional stability of sulfonated poly(arylene ether sulfone) (SPAES) nanofiber nonwoven fabric/silicate composite membrane (SN/S membrane) featuring dual phase co-continuous morphology is systematically investigated. The SN/S membrane is fabricated via in-situ sol-gel synthesis of tetraethoxysilane/3-glycidyloxypropyltrimethoxysilane mixture directly inside the electrospun SPAES nonwoven. Owing to the structural uniqueness, the SN/S membrane shows noticeable improvement in relative humidity variation-driven dimensional change, as compared to a typical composite membrane (i.e., SPAES/silicate composite membrane (S/S membrane) composed of SPAES matrix (as a continuous phase) and silicate domains (as a dispersed phase)). A noteworthy finding of this study is that the phase morphology of composite membranes plays a crucial role in determining membrane properties such as proton conductivity and dimensional stability. |
| 저자 |
임준묵1, 원지혜1, 이현지2, 김정환2, 홍영택3, 이상영2
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| 소속 |
1강원대, 2울산과학기술대, 3한국화학(연) |
| 키워드 |
composite proton exchange membranes; phase morphology; sulfonated poly(arylene ether sulfone); silicate; proton conductivity; dimensional change
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| E-Mail |
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