| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
대학원생 구두발표(영어발표, 발표10분) |
| 제목 |
Hierarchical Structure Engineering of Superporous Hydrogels |
| 초록 |
The directional freezing is an important technique to produce aligned porous materials. Porous poly(N-isopropylacrylamide) (PNIPAm) and their composites having cellulose fibers were successfully engineered by means of in situ photopolymerization and unidirectional freezing. Crystalline microfabrillated cellulose (MFC) was prepared by hydrolysis of bacterial cellulose and immobilized within the directionally aligned microporous PNIPAm phase using photopolymerization. The immobilized MFC reduced the swelling ratio and enhanced volume transition above the LCST transition.Whereas directionally aligned micropores increased the swelling ratio and reduced the elastic modulus above the transition. Aligned micropores facilitated the fast water infiltration, confirmed through the water contact angles with time which is beneficial for superabsorbent applications. This combination of nanofibers and aligned micropores within PNIPAm phase could explore new route to develop the superporous hydrogels |
| 저자 |
칸타파, 이종휘
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| 소속 |
중앙대 |
| 키워드 |
Microfibrilated cellulose; unidirectional freezing; composite; superporous hydrogel; responsive hydrogel; micropore; superabsorbent
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| E-Mail |
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