Radiolytic synthesis of Ag-poly(BIS-co-HEMA-co-IA) nanocomposites

被引：10
作者：
Kacarevic-Popovic, Z.
Tomic, S.
Krkljes, A.
Micic, M.
Suljovrujic, E.
机构：
[1] Vinca Inst Nucl Sci, Belgrade 11001, Serbia
[2] Univ Belgrade, Fac Technol & Met, Belgrade 11120, Serbia
来源：
RADIATION PHYSICS AND CHEMISTRY | 2007年 / 76卷 / 8-9期
关键词：
gamma irradiation; Ag nanoparticles; hydrogels; HEMA;
D O I：
10.1016/j.radphyschem.2007.02.026
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ag-poy(BIS-co-HEMA-co-IA) nanocomposites are prepared via in situ reduction of silver salt embedded in swollen polymer gels by employing gamma irradiation. Hydrogels based on 2-hydroxyethyl methacrylate, itaconic acid and four types of poly(alkylene glycol) acrylate or methacrylate (Bisomers) were previously prepared using gamma irradiation. The nanocomposites are characterized by using UV-vis, swelling measurements and thermal analysis. Evolution of plasmon absorption detected by UV-vis spectro photometry indicated generation of Ag nanoparticles in polymer hydrogels. Altering the structure of the hydrogels did not lead to alternation of the position of the absorption maximum. The bulk property of equilibrium swelling is dependent on the presence of the Ag nanostructures. The initial thermal stability of the polymer is slightly increased due to presence of silver as nanofiller. (c) 2007 Elsevier Ltd. All rights reserved.
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页码：1333 / 1336
页数：4
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