Controllable synthesis of silica nanoparticle size and packing efficiency onto PVP‐functionalized PMMA via a sol–gel method

Kim Gi H.; Hwang Sung W.; Kang Dong H.Jung Bich N.Lee Mi J.Shim Jin K.Seo Kwan H.

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Controllable synthesis of silica nanoparticle size and packing efficiency onto PVP‐functionalized PMMA via a sol–gel method

机译：Controllable synthesis of silica nanoparticle size and packing efficiency onto PVP‐functionalized PMMA via a sol–gel method

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ABSTRACT This study aimed to investigate synthesis and adsorption behavior of silica nanoparticles onto polyvinylpyrrolidone (PVP)‐functionalized poly(methyl methacrylate) under various conditions such as methanol/water ratio, ammonium hydroxide concentration, polymer contents, tetraethylorthosilicate contents, and total volume of solvent via sol–gel method. First, the copolymerization of methyl acrylate as a comonomer and 1‐dodecanethiol as a chain transfer agent increased the thermal stability of the product; however, the uniformity of the PMMA particles decreased because of the chain transfer reaction. Second, the adsorption behavior and size of silica nanoparticles could be controlled by adjusting the silica synthesis conditions. The adsorbed silica particle size was greatly influenced by the ammonium hydroxide concentration and the addition of water further enhanced the size increase. However, increasing the water content reduced the packing efficiency of the adsorbed silica particles. Increasing the PVP‐functionalized PMMA content at a fixed TEOS content linearly decreased the silica particle size. But TEOS concentration did not significantly affect the silica particle size. ? 2020 Wiley Periodicals, Inc. J. Polym. Sci. 2020 , 58 , 662–672

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《Journal of Polymer Science》 |2020年第5期|662-672|共11页
作者
Kim Gi H.; Hwang Sung W.; Kang Dong H.Jung Bich N.Lee Mi J.Shim Jin K.Seo Kwan H.;
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作者单位

Korea Packaging CenterKorea Institute of Industrial Technology14449,Bucheon,South Korea;

Department of Chemical EngineeringKeimyung University42601,Daegu,South Korea;

Department of Polymer Science and EngineeringKyungpook National University41566,Daegu,South Korea;

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正文语种英语
中图分类有机化学;高分子化学（高聚物）;
关键词
Polyvinylpyrrolidone‐functionalized PMMA; sol–gel method; packing efficiency; silica nanoparticles;

Controllable synthesis of silica nanoparticle size and packing efficiency onto PVP‐functionalized PMMA via a sol–gel method

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