PT Journal AU Guo, X Theissen, S Claussen, J Hildebrand, V Kamphus, J Wilhelm, M Luy, B Guthausen, G TI Dynamics of Sodium Ions and Water in Swollen Superabsorbent Hydrogels as Studied by ²³Na- and ¹H-NMR SO Macromolecular chemistry and physics PY 2018 BP 1800350 VL 220 IS 2 DI 10.1002/macp.201800350 LA english ER