Silver nanoparticles in polyvinylpyrrolidone grafted natural rubber

被引：14

作者：

Abu Bakar, N. H. H. ^{[1
]}

Ismail, J. ^{[1
]}

Abu Bakar, M. ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Chem Sci, Nanosci Res Lab, Minden 11800, Penang, Malaysia

来源：

REACTIVE & FUNCTIONAL POLYMERS | 2010年 / 70卷 / 03期

关键词：

Polyvinylpyrrolidone grafted natural rubber; Silver nanoparticles; UV irradiation; OPTICAL-PROPERTIES; GOLD; BEHAVIOR; KINETICS;

D O I：

10.1016/j.reactfunctpolym.2009.11.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Polyvinylpyrrolidone grafted natural rubber (PVP-g-NR) latex was used as matrix to synthesize silver nanoparticles. The average diameter of the silver nanoparticles is 4.1 nm. The modified natural rubber was previously formed via in situ polymerization of N-vinyl-2-pyrrolidone (NVP) in natural rubber latex (NRL) using cumene hydroperoxide (CHP) and tetraethylenepentamine (TEPA) as a redox initiator. The evidence of PVP grafted rubber particles was demonstrated by extraction as well as gravimetric and FTIR studies. Transmission electron microscopy (TEM) studies of the Ag*/PVP-g-NR films after exposure to UV light, revealed distinct layers comprised of PVP-stabilized silver particles surrounding the rubber particle. This confirms the grafting of PVP. which stabilizes the silver particles as well as the rubber particles in a role that is similar to that of the protein in our previous work. (C) 2010 Published by Elsevier Ltd.

引用

页码：168 / 174

页数：7

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