Ganapathy, S. ; Rajamohanan, P. R. ; Ramanujulu, P. M. ; Mandhare, A. B. ; Mashelkar, R. A. (1994) 1H MAS N.M.R. and two-dimensional nuclear Overhauser enhancement spectroscopy in hydrogels Polymer, 35 (4). pp. 888-891. ISSN 0032-3861
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0032-3861(94)90893-1
Abstract
The combination of 1H magic angle spinning (MAS) n.m.r. and two-dimensional nuclear Overhauser enhancement spectroscopy (NOESY) is shown to be readily applicable to hydrogels. This is demonstrated in the superabsorbing polymer, hydrolysed starch-g-poly(acrylonitrile), which readily responds to hydration. Enhanced molecular mobility of the polymer is directly revealed by polymer-polymer NOESY connectivities. The two-dimensional experiment also reveals the presence of an efficient cross-relaxation mechanism between the water of hydration and the polymer.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Hydrogel; Nuclear Magnetic Resonance; NOESY |
| ID Code: | 63006 |
| Deposited On: | 24 Sep 2011 15:05 |
| Last Modified: | 24 Sep 2011 15:05 |
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