| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Synthesis of poly(N-isopropylacrylamide) micro-hydrogel using a microchannel and study on concentration sensor |
| 초록 |
In this study, PDMS microchannels were fabricated by using a soft lithography process. Poly (N-isopropylacrylamide) (PNIPAm) micro-hydrogel spheres were synthesized by using the microfluidic channel. The volume of synthesized micro-hydrogel was reduced as increasing temperature, exhibiting lower critical solution temperature (LCST) behavior at around 32 ° C. The volume changes of the micro hydrogels were monitored as they were immersed into poly(vinyl alcohol) (PVA) or sodium chloride (NaCl) solution. The effects of temperature and solution concentration on the volume of the micro-hydrogels were investigated. The osmotic pressures of the micro-hydrogels were calculated from the solid contents in the micro-hydrogel by using the Flory-Huggins theory. It was suggested that the micro-hydrogel can be used as a sensor detecting concentration of solution and temperature. |
| 저자 |
강신혜, 김서균, 이헌상
|
| 소속 |
동아대 |
| 키워드 |
Osmotic Pressure; poly(N-isopropylacrylamide); Microgel; Hydrogel; Microfluidics
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| E-Mail |
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