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Hollow Doughnut Shape Mesoporous Silica Nanoparticles for Reduction of the Thermal Expansion Coefficient of Poly(ether sulfone) Films

Abstract

A decrease in the coefficient of thermal expansion of poly(ether sulfone) film is achieved by the incorporation of hollow doughnut shaped mesoporous silica nanoparticles (hd-MSN). The new class of silica nanoparticles with unprecedented structural morphology is synthesized by hydrolysis of tetraethyl orthosilicate (TEOS) in the presence of cetyltrimethylammonium bromide (CTAB), L-arginine, and ammonium metatungstate (AMT) composite template, all in aqueous ethanol. 46.1% and 48.0% decrease in the coefficient of thermal expansion (CTE) of poly(ether sulfone) film are observed in range of 30-90°C and 30-150°C, respectively, when 2.0 wt% of hd-MSNs are loaded. Furthermore, the small size (< 50 nm diameter) of doughnut shape mesoporous silica nanoparticles helps to decrease light scattering, and thus maintains high transmittance of nanocomposite film. The effect of the hd-MSN was also investigated on both the thermal stability and the mechanical stability. We expect the hd-MSN synthesized in this study can be used as a promising filler to improve the thermal and mechanical stability of the PES substrate without losing its optical transparency

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Publication details

The article was received on 21 Nov 2017, accepted on 12 Feb 2018 and first published on 12 Feb 2018


Article type: Paper
DOI: 10.1039/C7NJ04535B
Citation: New J. Chem., 2018, Accepted Manuscript
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    Hollow Doughnut Shape Mesoporous Silica Nanoparticles for Reduction of the Thermal Expansion Coefficient of Poly(ether sulfone) Films

    D. Kim, N. T. Vo and A. K. Patra, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ04535B

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