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Enhanced thermal Properties and Gas Barrier Property of PMMA Nanocomposites with Layered Silicate via Soap-Free Emulsion Polymerization

Published online by Cambridge University Press:  01 February 2011

Hsiu-Yu Cheng  and
Guang-Way William Jang
Hsiu-Yu Cheng
Affiliation:
[email protected], industrial technology research institute, Polymer Hybrid, Rm. 554, Bldg. 6, 321, Kuang Fu Rd., Sec. 2,, hsinchu, 300, Taiwan, 886-3-5732794, 886-3-5732351
Guang-Way William Jang
Affiliation:
[email protected], Industrial Technology Research Institude, Polymer Hybrid, Rm. 534, Bldg 6, 321, Kuang Fu Rd., Sec. 2,, Hsinchu, 300, Taiwan
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Abstract

Polymer/SWN nanocomposites were synthesized in the soap-free emulsion polymerization of methyl methacrylate (MMA) using 2-hydroxylethyl methacrylate (HEMA). The SWN in the polymer/SWN nanocomposites was individually dispersed in water, and these are adsorbed on the surface of monomer droplets. Polymer/SWN nanocomposites were obtained by adding an aqueous dispersion of layered silicate to the polymer emulsion. X-ray diffraction (XRD) and FT-IR spectra were utilized to characterize the structures of the nanocomposites. The degree of dispersion of these nanocomposites was investigated by transmission electron microscopy (TEM). Furthermore, the thermal and mechanical properties of polymer/SWN nanocomposites were determined using thermogravimetric analysis (TGA), differential scanning calorimeter (DSC) and dynamic mechanical analysis (DMA). The increased tanδ of the obtained nanocomposites is caused by the fine dispersion of SWN particles into the polymer matri

Keywords

nanostructurepolymerbarrier layer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 951: Symposium E – Nanofunctional Materials, Nanostructures and Novel Devices for Biological and Chemical Detection , 2006 , 0951-E12-43
Copyright
Copyright © Materials Research Society 2007

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