In situ Synthesis of Metal Nanoparticle Embedded Free Standing Multifunctional PDMS Films

被引：133

作者：

Goyal, Anubha ^{[1
]}

Kumar, Ashavani ^{[1
]}

Patra, Prabir K. ^{[1
]}

Mahendra, Shaily ^{[2
]}

Tabatabaei, Salomeh ^{[1
]}

Alvarez, Pedro J. J. ^{[2
]}

John, George ^{[3
]}

Ajayan, Pulickel M. ^{[1
]}

机构：

[1] Rice Univ, Dept Mech Engn & Mat Sci, Houston, TX 77005 USA

[2] Rice Univ, Dept Civil & Environm Engn, Houston, TX 77005 USA

[3] CUNY City Coll, Dept Chem, New York, NY 10031 USA

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2009年 / 30卷 / 13期

基金：

美国国家科学基金会;

关键词：

antibacterial properties; mechanical properties; nanocomposites; polysiloxanes; SILVER NANOPARTICLES; COMPOSITES; MEMBRANES; POLYMERS; GOLD; NANOCOMPOSITES; STABILITY; TOXICITY; SURFACES;

D O I：

10.1002/marc.200900174

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We demonstrate a simple one-step method for synthesizing noble metal nanoparticle embedded free standing polydimethylsiloxane (PDMS) composite films. The process involves preparing a homogenous mixture of metal salt (silver, gold and platinum), silicone elastomer and the curing agent (hardener) followed by curing. During the curing process, the hardener crosslinks the elastomer and simultaneously reduces the metal salt to form nanoparticles. This in situ method avoids the use of any external reducing agent/stabilizing agent and leads to a uniform distribution of nanoparticles in the PDMS matrix. The films were characterized using UV-Vis spectroscopy, transmission electron microscopy and X-ray photoemission spectroscopy. The nanoparticle-PDMS films have a higher Young's modulus than pure PDMS films and also show enhanced antibacterial properties. The metal nanoparticle-PDMS films could be used for a number of applications such as for catalysis, optical and biomedical devices and gas separation membranes.

引用

页码：1116 / 1122

页数：7

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