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- W2415099080 abstract "일반적인 기체분리막은 투과도와 선택도의 역상관 관계를 가지고 있다. 본 연구에서는 P25(TiO₂ 나노입자의 상품명)와 양친성 가지형 공중합체로 구성된 혼합매질을 제조하였으며 투과도와 선택도가 동시 향상되는 결과를 얻었다. 가지형 공중합체는 폴리비닐클로라이드(PVC) 주사슬과 폴리옥시에틸렌메타크릴레이트(POEM) 곁사슬로 구성되었으며 원자전달라디칼중합(ATRP)을 통해 합성하였다. DSC 결과를 통해 P25를 도입했을 경우 PVC-g-POEM의 유리전이온도가 감소되는 것을 확인하였으며 이는 사슬 결정도의 감소를 나타낸다. XRD, SAXS, TGA, SEM을 통해 분리막의 결정 구조, 도메인간의 간격 변화, 미세 모폴로지 및 열적 특성을 분석하였다. 순수 PVC-g-POEM에 비해, P25/PVC-g-POEM 혼합매질 분리막은 투과도는 46.2에서 102.8 Barrer(1 Barrer=1×10 -10 cm 3 (STP)·cm·cm -2 ·s -1 ·cmHg -1 )로 122% 증가하였으며, CO₂/N₂ 선택도는 29.6에서 39.1로 32% 향상되었다. 증가된 CO₂ 투과도는 증가된 확산도의 결과이며, 향상된 선택도는 N₂ 용해도 감소로부터 기인한다." @default.
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- W2415099080 date "2016-03-31" @default.
- W2415099080 modified "2023-09-27" @default.
- W2415099080 title "P25/PVC-g-POEM Mixed Matrix Membranes with Simultaneously Improved Permeability and Selectivity for CO₂/N₂ Separation" @default.
- W2415099080 doi "https://doi.org/10.7317/pk.2016.40.2.238" @default.
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