Molecular dynamics studies of polyurethane nanocomposite hydrogels J. Strankowska, Ł. Piszczyk, M. Strankowski, M. Danowska, K. Szutkowski, S. Jurga and J. Kwela Eur. Phys. J. Special Topics, 222 9 (2013) 2179-2186 Published online: 23 October 2013 DOI: 10.1140/epjst/e2013-01994-8