| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
우수논문(구두) |
| 제목 |
Superporous thermoresponsive MFC/PNIPAm composite hydrogels by unidirectional freezing |
| 초록 |
The directional freezing is a simple technique for producing aligned porous structures. The crystalline microfibrilated cellulose (MFC), obtained by hydrolysis of bacterial cellulose used as reinforcing materials. Superporous composite hydrogels were prepared by introducing MFC in cross-linked poly(N-isopropyl acrylamide) (PNIPAm). Herein unidirectional freezing and in-situ photopolymerization techniques were used. The resulting materials have both aligned micropores and temperature responsive swelling. The immobilized of MFC reduced the swelling ratio and enhanced volume transition, whereas aligned micropores increased the swelling ratio and reduced the elastic modulus above the LCST transition. Aligned micropores facilitated the fast water infiltration confirmed by monitoring water contact angles with time which is beneficial for superabsorbent applications. This combination of MFC and micropores within PNIPAm could explore new route for the development of stimuli-responsive superporous hydrogels. |
| 저자 |
Kantappa, 이종휘
|
| 소속 |
중앙대 |
| 키워드 |
hydrogel; PNIPAm; superporous
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| E-Mail |
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