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Agrawal, M. ; Zafeiropoulos, N.E. ; Gupta, S. ; Svetushkina, E. ; Pionteck, J. ; Pich, A. ; Stamm, M.
A novel approach for mixing of ZnO nanopartictles into poly(ethylmethacrylate)

A novel and versatile approach for the mixing of ZnO nanofillers into a host polymer matrix, poly(ethyl methacrylate) (PEMA), is reported. Firstly, ZnO nanoparticles are deposited onto the surface of polystyrene (PS) colloidal particles in a raspberry-like fashion and subsequently obtained PS/ZnO composite particles are mixed into the PEMA matrix in the range of 0.5 to 5 wt.-%. Microscopic analyses reveal a homogenous distribution of PS/ZnO domains into the PEMA matrix even at 5 wt.-% loading level. Thermogravimetric analysis and differential scanning calorimetry results indicate an improvement in thermal stability of PEMA matrix after mixing with PS/ZnO filler particles. A significant enhancement in mechanical properties of PEMA matrix in the presence of PS/ZnO particles has been evidenced by dynamic mechanical analysis and three point bending measurements.

Source
Macromolecular Rapid Communications 31

Pages
405-410

DOI
http://dx.doi.org/10.1002/marc.200900584

Published
February 2010
 
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