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Prof. Dr. Pavletta Shestakova, Prof. Dr. Rudolph Willem and Prof. Dr. Elena Vassileva Elucidation of the Chemical and Morphological Structure of Double-Network (DN) Hydrogels by High-Resolution Magic Angle Spinning (HRMAS) NMR Spectroscopy Chemistry - A European Journal 17

Version of Record online: 27 OCT 2011 | DOI: 10.1002/chem.201101334

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Double-network hydrogels: HRMAS NMR spectroscopy was used to address the structure and morphology of DNs, prepared from poly(2-acrylamido-2-methyl-1-propanesulfonic acid) and poly(acrylamide). The results evidence that the toughening mechanism and the exceptionally strong mechanical properties of DNs originate from cooperative effects based on the formation of both covalent bonds and strong hydrogen bonds between the two polymer networks (see figure).

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