Structural Characterization of Hybrid PVA/ZnO NPs Hydrogels
Poly Vinyl Alcohol (PVA) and inorganic nanoparticles have been used for the obtainment of nanocomposites with several technological applications, from food and detergent packaging to artificial tissue and contact lenses. In particular, a promising system is represented by PVA matrix containing ZnO nanoparticles (ZnO NPs) showing improved mechanical properties, higher resistance to UV-radiation exposure and optical fluorescence properties. Even if a large variety of hybrid hydrogel based on PVA and inorganic nanoparticles has recently been proposed, a detailed structural characterization is missing. Here we propose to perform SANS measurements on PVA-ZnONPs hydrogels with increasing ZnONPs concentration, investigating their structure simultaneously on the mesoscopic and microscopic scale. Being water one of the components of a hydrogel (about 80%w/w), SANS represents the best approach to obtain structural information without compromising the sample hydration. We believe that the collected information will be extremely relevant for the rational design of hybrid hydrogel with potential application in several technological fields, such as food and detergent packing.
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LUCHINI Alessandra; GERELLI YURI; PADUANO Luigi; PERFETTI Marco; PORCAR Lionel and VITIELLO Giuseppe. (2017). Structural Characterization of Hybrid PVA/ZnO NPs Hydrogels. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-472
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