| 학회 |
한국고분자학회 |
| 학술대회 |
2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 |
30권 2호 |
| 발표분야 |
복합재료 |
| 제목 |
Formation of nanoparticles of metal in hydrogel network by electron beam irradiation |
| 초록 |
The photogeneration of Metal particles and clusters was studied in thin films containing crosslinked poly(vinyl alcohol), poly(vinyl methyl ether) and Poly(vinyl pyrrolidone). Metal ions in hydrogel network have been reduced by electron beam irradiation to produce Metal clusters as nanoparticles in fully reduced and highly pure state. XRD (X-ray diffraction) technique confirmed the zero valent state of silver. UV-visible absorption spectral characteristics of Metal cluster confirm that hydrogel network is a very efficient stabilizer and prevent further aggregation of Metal clusters. Transmission Electron Microscopic (TEM) studies show that metal particles have size of 20-30 nm and metal's shape have a spherical form. It has been investigated that the high dose rate conditions of electron irradiation resulted in wide speared nanoparticles in the hydrogel network with almost no aggregation at higher dose. |
| 저자 |
김병준, M. Asif Siddiqui, 윤수원, 서길수
|
| 소속 |
영남대 |
| 키워드 |
nanoparticles; hydrogel; electron beam; PVA; PVME
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| E-Mail |
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