| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
기능성고분자－막분리용 고분자 |
| 제목 |
Light-responsive Smart Surface with tunable wettability by Photothermal effect of Gold Nanoparticles |
| 초록 |
We fabricated smart surfaces that can be switched between superhydrophobic and superhyrophilic state by visible light. For this purpose, we first prepared a rough surface on a silicon wafer by using the layer-by-layer deposition (LBL) by immersion of the substrate into poly(allyamine hydrochloride) (PAH) and SiO2 nanoparticles having diameter of ~ 11nm. Then, LBL was further performed by immersion into poly(styrene sulfonic acid) (PSS) and a colloid solution with gold nanoparticles having diameter of ~45 nm. Then, surface-initiated atom-transfer radical polymerization (SI-ATRP) was used to synthesize visible light-responsive poly(n-isopropylacrylamide) (PNIPAM) thin films on a rough substrate. We found that the surface wettability was changed by utilizing chain conformation of PNIPAM through heat arising from photothermal effect of Au nanoparticles in the presence of visible light. |
| 저자 |
신지현, 변진석, 권승철, 장상신, 전금혜, 김진곤
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| 소속 |
포항공과대 |
| 키워드 |
Gold nanoparticles; poly(N-isopropylacryamide); photothermal effect
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| E-Mail |
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