Polyurethane–poly(2-hydroxyethyl methacrylate) semi- IPN–nanooxide composites
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Date
2013-05-30
Authors
Mikhalovsky, S. V.
Bershtein, Vladimir A.
Gun’ko, Vladimir M.
Karabanova, Lyudmila V.
Sukhanova, Tatiana E.
Yakushev, Pavel N.
Egorova, Larisa
Turova, Anna A.
Zarko, Vladimir I.
Pakhlov, Eugene M.
Journal Title
Journal ISSN
Volume Title
Publisher
RSC Advances
Abstract
Two sets of hybrid polyurethane–poly(2-hydroxyethyl methacrylate) semi-interpenetrating polymer
network–nanooxide composites with 0.25 or 3 wt% nanosilica or nanoalumina functionalised with OH,
NH2 or CHLCH2 groups were prepared. A combination of atomic force microscopy, infrared spectroscopy,
thermally stimulated depolarisation current measurement, differential scanning calorimetry and creep rate
spectroscopy analysis of the nanostructure and properties of the composites was performed. The
pronounced dynamic heterogeneity and the strong impact of oxide additives, basically suppression of the
dynamics and temperature-dependent increasing modulus of elasticity, were observed. The effects correlated with either interfacial interactions (for silica) or the nanostructure (for alumina). A low oxide content strongly affected the matrix due to the formation of an unusual cross-linked, via double covalent hybridisation of three components, structure of the nanocomposites.
Description
Keywords
semi-interpenetrating polymer, polymer composites, Polyurethane–poly, semi- IPN–nanooxide composites
Citation
RSC Advances, 2013, 3, 14560. DOI: 10.1039/c3ra40295a