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Issue 7, 2018
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Hollow doughnut shaped mesoporous silica nanoparticles for reduction of the thermal expansion coefficient of poly(ether sulfone) films

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Abstract

A decrease in the coefficient of thermal expansion of poly(ether sulfone) films is achieved through the incorporation of hollow doughnut shaped mesoporous silica nanoparticles (hd-MSNs). A new class of silica nanoparticles with an 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 templates, all in aqueous ethanol. 46.1% and 48.0% decreases in the coefficient of thermal expansion (CTE) of poly(ether sulfone) films are observed in the 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 shaped mesoporous silica nanoparticles helps to decrease light scattering, and thus maintains the high transmittance of the nanocomposite films. The effect of the hd-MSN was also investigated on both the thermal and mechanical stability. We expect that 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.

Graphical abstract: Hollow doughnut shaped mesoporous silica nanoparticles for reduction of the thermal expansion coefficient of poly(ether sulfone) films

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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., 2018,42, 5045-5051
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    Hollow doughnut shaped mesoporous silica nanoparticles for reduction of the thermal expansion coefficient of poly(ether sulfone) films

    N. T. Vo, A. K. Patra and D. Kim, New J. Chem., 2018, 42, 5045
    DOI: 10.1039/C7NJ04535B

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