Magnetic Resonance in Studying Natural and Synthetic Materials


Victor V. Rodin

DOI: 10.2174/97816810862931180101
eISBN: 978-1-68108-629-3, 2018
ISBN: 978-1-68108-630-9

This book describes nuclear magnetic resonance (NMR) methods which are used to study translational dynamics of molecules in different ...[view complete introduction]
US $
Buy Personal eBook
Order Library eBook
Order Printed Copy
Order PDF + Printed Copy (Special Offer)

*(Excluding Mailing and Handling)

🔒Secure Checkout Personal information is secured with SSL technology
Also available:

Magnetic Resonance Imaging in Characterisation of Polymer Films

- Pp. 150-162 (13)

Victor V. Rodin


Diffusivity and distribution of water in random copolymer films of butyl methacrylate and methacrylic acid swollen in water have been investigated using magnetic resonance imaging (MRI) and NMR relaxation techniques. The relative contributions of the protons of the polymer matrix and bound water have been analyzed using 1H NMR spectra and MRI data of the swollen films. Pulse Field Gradient (PFG) NMR experiments have been carried out in parallel to the MRI studies. The results have been discussed with reference to published MRI data for water in a number of polymer materials. The free induction decay (FID) and the spin-spin relaxation times (T2) data for water saturated polymer films correlated well with the MRI intensities for the same samples. The results show that by varying the hydrophobic/hydrophilic comonomer ratios in the polymers, the water ingress can be changed. MRI data show how to monitor drying process. Moisture profiles and relaxation data were obtained during film drying. The time dependences of the image slices intensity for the drying films were fitted by a single-exponential function with an average time constant as k = −0.02 min−1.

Purchase Chapter  Book Details


Webmaster Contact: Copyright © 2019 Bentham Science