| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
(특별세션) 미세 다공성 분리막 제작 및 응용 |
| 제목 |
Hierarchically Porous Membranes of Covalent Network/Polymer Nanocomposite |
| 초록 |
We synthesized a new microporous covalent network membrane derived from co-continuous blends of a porogenic urea network and a polyimide. We showed that the urea networks in the PI matrix could be transformed thermally while selectively expelling small molecular fragments to form a new network with reticular microporous molecular pathways that exhibited a high permeability to gas molecules. The resultant membranes exhibited reverse-selective separation behaviors toward CO2/N2 mixture, blocking CO2 while transporting N2. The reverse-selectivity may also be potentially useful for separation of other CO2-containing gas mixtures. The facile preparation of microporous nanocomposites from a porogenic network/polymer blend film via in situ pore generation shows promise for the creation of new materials for molecular separation membranes. |
| 저자 |
박지웅 |
| 소속 |
GIST |
| 키워드 |
Microporous membranes |
| E-Mail |
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