Fabrication and characterization of novel polyvinylpyrrolidone nanocomposites having SiO2 nanoparticles modified with citric acid and L(+)-ascorbic acid
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- 作者：Shadpour Mallakpoura ; b ; c ; mallak@cc.iut.ac.ir" class="auth_mail" title="E-mail the corresponding author ; mallak777@yahoo.com" class="auth_mail" title="E-mail the corresponding author ; mallakpour84@alumni.ufl.edu" class="auth_mail" title="E-mail the corresponding author ; Mina Naghdia
- 关键词：Silica nanoparticles ; Biological molecules ; Polyvinylpyrrolidone ; TEM micrographs
- 刊名：Polymer
- 出版年：2016
- 出版时间：4 May 2016
- 年：2016
- 卷：90
- 期：Complete
- 页码：295-301
- 全文大小：2532 K
文摘
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Surface modification of SiO2 NPs using two biologically active molecules.
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Modified SiO2 NPs have good compatibility and proper dispersion in the PVP matrix.
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Using ultrasonic irradiation as a green and economical tool.
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Improvement thermal stability by incorporating of SiO2 nanoparticles.
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Increment of UV shielding by the addition of modified silica to the PVP matrix.