| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-콜로이드·계면화학 |
| 제목 |
Reactive Molecular Network Sol as a Building Block for Facile Synthesis of Continuous Nanoporous Membranes |
| 초록 |
Robust and pore-size-tunable nanoporous membrane are necessary for precise nanoscale filtration and chemical reaction in organic solvent medium. We recently reported reactive molecular network that maintained dispersed state for a long period time, enabling further polymerization in the existence of an additive. Phase separation of the polyurea sol and the additive produces bicontinuous morphology at appropriate conditions, which can be transformed into a robust nanoporous structure. Herein, we introduce our findings that various polymers and organosilanes can function as phase separation inducers and porogens to obtain a continuous nanoporous membrane. The pore size distribution of the membranes were controlled within meso-/macroporous regime by changing the fraction of the porogens. We demonstrated filtration of sub-10 nm solutes in addition to long-term and chemical stability. The interplay of phase separation, gelation, and evaporation was critical for the structure formation |
| 저자 |
오왕석, 여경은, 박지웅
|
| 소속 |
Gwangju Institute of Science and Technology |
| 키워드 |
nanoporous membrane; organic sol gel synthesis; hybrid membrane
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| E-Mail |
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