期刊
POLYMERS FOR ADVANCED TECHNOLOGIES
卷 28, 期 12, 页码 1719-1729出版社
WILEY
DOI: 10.1002/pat.4045
关键词
organic compounds; thin films; nanostructures; surface properties; Al2O3 nanoparticle
资金
- Research Affairs Division of Isfahan University of Technology (IUT), Iran
- National Elite Foundation (NEF)
- Center of Excellence in Sensors and Green Chemistry Research (IUT)
The present work describes preparation of modified alumina with biocompatible, water soluble, and treating agents such as citric acid and ascorbic acid. Also, the influence of the modified nanoparticles (NPs) into the blend of poly(vinyl alcohol)@poly(vinyl pyrrolidone) (50/50) matrix was studied. At first, citric acid and ascorbic acid as environmental friendly agents were grafted on the surface of Al2O3 NPs. Then, nanocomposites (NCs) with different amounts of modified Al2O3 NPs were prepared via a simple ultrasonic method. The characterizations of the molecular structure of the NCs specified that chemical and physical interactions happened between inorganic and organic counterparts. The mutual effect of modified NPs into the polymer matrix was investigated on the structural, interfacial interaction, thermal stability, and optical properties. The results from morphological characterization confirmed changes in morphology of poly(vinyl alcohol) and poly(vinyl pyrrolidone) after loading NPs. Uniform dispersion of modified spherical Al2O3 NPs powders into the matrix of 50/50 polymers was detected by field emission scanning electron microscopy and energy-dispersive X-ray. Adding M-NPs into the polymer matrix expressively improved the thermal stability of NCs. Peaks in ultraviolet-visible spectra were shifted to the higher absorption. Copyright (c) 2017 John Wiley & Sons, Ltd.
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