| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Preparation and application of PNIPAm hydrogel nano/microcapsules by soup free emulsion polymerization using surface-modified nano/micro silica as templates |
| 초록 |
Poly(N-isopropylacrylamide) (PNIPAm) is a well-known thermo-responsive polymer which exhibits volume phase-transition at the LCST and shrinks above the LCST with the release of water. These hydrogels showed a sharp volume transition and response to temperature change. To obtain latex particles containing a single core, aggregation of silica particles and composite particles should be avoided during the encapsulation process. The silica core composite particles with PNIPAm hydrogel shell were prepared by using the method of electrostatic repulsion between particles. PNIPAm hydrogel nano/microcapsules prepared by using emulsion copolymerization were applied to PES microfiltration membranes. Hydrogel hybrid membranes were prepared by phase inversion method and by the action of diffusion. The action of the solvent/non-solvent upon diffusion was remarkably important. Properties of PES-hydrogel hybrid membranes were studied by flux test cell and contact angle analyzer. |
| 저자 |
김효철, 김형일
|
| 소속 |
충남대 |
| 키워드 |
nanocapsule; microcapsule; hydrogel; template; membrane.
|
| E-Mail |
|
