Exceptionally good, transparent and flexible FeS2/poly(vinyl pyrrolidone) and FeS2/poly(vinyl alcohol) nanocomposite thin films with excellent UV-shielding properties

被引：8

作者：

Sajimol, Augustine M. ^{[1
]}

Anand, Puthirath B. ^{[1
]}

Anilkumar, Kollery M. ^{[1
]}

Jayalekshmi, Sankaran ^{[1
]}

机构：

[1] Cochin Univ Sci & Technol, Div Res Adv Mat, Dept Phys, Kochi 22, Kerala, India

来源：

POLYMER INTERNATIONAL | 2013年 / 62卷 / 04期

关键词：

nanocomposite; solvothermal; solution casting; UV shielding; INORGANIC NANOCOMPOSITES; ELECTRICAL-PROPERTIES; CROSS-LINKING; HYDROGELS;

D O I：

10.1002/pi.4348

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Composites of nanocrystalline iron disulfide (FeS2) coated with poly(vinyl pyrrolidone) (PVP) or poly(vinyl alcohol) (PVA) have been successfully synthesized using a solvothermal process, in which PVP and PVA serve as soft templates. Transparent, flexible thin films of these nanocomposites were prepared from homogeneous solution using a solution-casting approach. X-ray diffraction and thermogravimetric analysis and energy-dispersive X-ray, Fourier transform infrared and UV-visible absorption spectroscopic techniques were employed to study the structural and optical properties of these nanocomposite films. UV-visible spectra in transmission mode reveal the UV-shielding efficiency of these nanocomposite films and the films are found to be exceptionally good for UV-shielding applications in the wavelength range 200 to 400 nm. The present work aims at developing transparent and flexible UV-shielding materials and colour filters using cost-effective and non-toxic inorganicpolymer nanocomposites. (c) 2012 Society of Chemical Industry

引用

页码：670 / 675

页数：6

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