Magnetic Resonance Imaging Analysis of Molecular Mobility during Dissolution of Poly(vinyl alcohol) in Water

@inproceedings{Narasimhan1999MagneticRI,
  title={Magnetic Resonance Imaging Analysis of Molecular Mobility during Dissolution of Poly(vinyl alcohol) in Water},
  author={Balaji Narasimhan and Johanna E M Snaar and Richard W. Bowtell and Stephen Philip Morgan and Colin D. Melia and Nikolaos Ath Peppas},
  year={1999}
}
Magnetic resonance imaging is used to study changing microstructure and molecular motion during dissolution of poly(vinyl alcohol) (PVA) in water. One-dimensional water concentration profiles were measured as a function of distance from the polymer-solvent interface. Diffusion-weighted profiles were used to calculate the spatial variation of the self-diffusion coefficient of water. The results indicate that diffusion coefficient values decrease toward the glassy core of the polymer. Self… CONTINUE READING
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