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Preparation of Poly(ethylene oxide)/Periodic Mesoporous Organosilica Composite  

Li, Dun (School of Display & Chemical Engineering Yeungnam University)
Sur, G. S. (School of Display & Chemical Engineering Yeungnam University)
Publication Information
Applied Chemistry for Engineering / v.20, no.5, 2009 , pp. 527-531 More about this Journal
Abstract
Periodic mesoporous organosilicas (PMO) were synthesized using bis(triethoxy silyl) benzene as the precursor and dodecyl trimethyl ammonium bromide (DTMA) as the templating agent. From these results of XRD, TEM, and NMR, the pore structure of the material was confirmed to have a well-organized hexagonal structure. Poly(ethylene oxide) (PEO) was penetrated into PMO. From the DSC and XRD experiments, the polymer melting transition of crystalline polyethylene oxide (PEO) decreased then finally disappeared. These results prove that the polymer chains penetrate into the PMO channels, and penetrated polymer chains are constrained inside channels of PMO.
Keywords
periodic mesoporous organosilica; poly(ethylene oxide); organic-inorganic composite;
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