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Home  >  Journal list  >  Polymer Journal  >  Vol.44  No.12 (2012)  >  pp.1230-1237

Polymer Journal
<<Previous article Vol.44  No.12 (2012)   pp.1230 - 1237 Next article>>

Green synthesis process of a polyurethane-silver nanocomposite having biocide surfaces

Issam Mtimet1, Laurence Lecamp1, Nasreddine Kebir1, Fabrice Burel1 and Thierry Jouenne2
1INSA de Rouen, UMR CNRS 6270, PBS, Saint Etienne du Rouvray Cedex, France
2Université de Rouen, UMR CNRS 6270, PBS, Saint Etienne du Rouvray Cedex, France

Silver nanoparticles were prepared by microwave irradiation of a silver nitrate (AgNO3) aqueous solution in poly(ethylene glycol) (PEG) in the absence of other chemicals. Optimal monodispersed, stable and spherical silver nanoparticles with 35±5nm diameter were obtained after 20min of microwave irradiation at 120°C in the presence of PEG 2000. Polyurethanes (PUs) containing silver (Ag) nanoparticles (35nm, 1 × 10−3–3 × 10−3 wt-%) were then prepared by introducing the nanoparticles suspension at different times of the waterborne PU synthesis. The Ag nanoparticles were found to be well dispersed in PU when introduced initially with the reagents. In these conditions, the PEG was well chemically linked to the PU chains and the presence of Ag nanoparticles didn’t impact the thermo-mechanical properties of the PU. The prepared silver nanoparticles exhibited biocidal properties against Pseudomonas aeruginosa and Enterococcus faecalis both in liquid suspension and on the PUs surfaces.


Keyword:
antibacterial activity; poly(ethylene glycol); silver nanoparticles; waterborne PU

Received: March 08, 2012 , Revised: April 11, 2012
Accepted: April 12, 2012 , Published online: May 23, 2012
© 2012 The Society of Polymer Science, Japan

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