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Issue 34, 2013
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Polyurethane–poly(2-hydroxyethyl methacrylate) semi-IPN–nanooxide composites

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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 CH[double bond, length as m-dash]CH2 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.

Graphical abstract: Polyurethane–poly(2-hydroxyethyl methacrylate) semi-IPN–nanooxide composites

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Article information

21 Jan 2013
30 May 2013
First published
31 May 2013

RSC Adv., 2013,3, 14560-14570
Article type

Polyurethane–poly(2-hydroxyethyl methacrylate) semi-IPN–nanooxide composites

V. A. Bershtein, V. M. Gun'ko, L. V. Karabanova, T. E. Sukhanova, P. N. Yakushev, L. M. Egorova, A. A. Turova, V. I. Zarko, E. M. Pakhlov, M. E. Vylegzhanina and S. V. Mikhalovsky, RSC Adv., 2013, 3, 14560
DOI: 10.1039/C3RA40295A

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