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Employment of ultrasonic waves for the preparation of PVA/TiO 2 ‐BSA nanocomposites: Mechanical, thermal, and optical properties
Author(s) -
Mallakpour Shadpour,
Shamsaddinimotlagh Sima
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46558
Subject(s) - vinyl alcohol , nanocomposite , materials science , bovine serum albumin , thermogravimetric analysis , chemical engineering , fourier transform infrared spectroscopy , nanoparticle , gravimetric analysis , polyvinyl alcohol , thermal stability , surface modification , composite material , polymer chemistry , nanotechnology , polymer , organic chemistry , chemistry , chromatography , engineering
The goal of this project is to obtain poly(vinyl alcohol) (PVA)/TiO 2 ‐bovine serum albumin (BSA) nanocomposite (NC) films in different weight percentages of modified TiO 2 . For this purpose, to prevent the accumulation of nanoparticles (NPs) in the PVA matrix, the surface of the TiO 2 NPs was treated with the BSA molecules. To achieve this aim, ultrasonic waves were used as an environmentally friendly and green process that decrease the time of reactions, help better spreading of TiO 2 NPs and maintain dimensions of TiO 2 NPs in the nanoscale range. In the end, the features of the PVA/TiO 2 ‐BSA NC films were considered with a variety of techniques. The Fourier transform infrared spectroscopy, energy dispersive X‐ray, and X‐ray diffraction showed that the BSA was well placed on the surface of TiO 2 NPs. The thermal gravimetric analysis and UV‐visible results demonstrated that all the PVA/TiO 2 ‐BSA NC films have better thermal and optical properties than the pure PVA. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46558.