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Characterization of Water Retention in Curdlan Xanthan Hydrogel Complex Using Magnetic Resonance Imaging NMR Relaxometry and Rheology
Date
2011-06-11
Author
Williams, Patrick
Öztop, Halil Mecit
Mccarthy, Michael J
Mccarthy, Kathryn L
Lo, Yangmin Martin
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https://hdl.handle.net/11511/82231
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Characterization of Water Distribution in Xanthan-Curdlan Hydrogel Complex Using Magnetic Resonance Imaging, Nuclear Magnetic Resonance Relaxometry, Rheology, and Scanning Electron Microscopy
WILLIAMS, Patrick D.; Öztop, Halil Mecit; MCCARTHY, Michael J.; MCCARTHY, Kathryn L.; LO, Y. Martin (2011-08-01)
Xanthan-curdlan hydrogel complex (XCHC) has been shown capable of retaining moisture up to 5 freeze-thaw cycles (FTCs); however, moisture distribution in the complex in relation to the hydrogel composition and structure remains uncharacterized. In the present study, magnetic resonance imaging (MRI), nuclear magnetic resonance (NMR) relaxometry, rheology, and scanning electron microscopy (SEM) were used to examine the effect of water distribution and interaction with 2.0% aqueous solutions of xanthan, curdla...
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In this work, a direct pyrolysis mass spectrometry technique was applied to characterize a conducting copolymer of succinic acid bis-(4-pyrrol-1-yl-phenyl) ester (SM) and thiophene prepared by electrochemical polymerization. Thermal degradation behavior of both components was quite similar to those of the corresponding homopolymers, PSM, and polythiophene PTh. Yet, detection of oligomers and mixed dimers of both monomers in the high temperature pyrolysis mass spectra confirmed the formation of a copolymer. ...
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P. Williams, H. M. Öztop, M. J. Mccarthy, K. L. Mccarthy, and Y. M. Lo, “Characterization of Water Retention in Curdlan Xanthan Hydrogel Complex Using Magnetic Resonance Imaging NMR Relaxometry and Rheology,” 2011, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/82231.