Solvent Self-diffusion and Transverse Relaxation in Concentrated Polymer Solutions
Cuthbertson, Bill M.
The self-diffusion coefficients of chloroform in poly(isopropyl acrylate)-chloroform solutions have been studied as a function of concentration and temperature using the pulsed field-gradient spin-echo NMR method. It is found that the self-diffusion coefficients of the solvent can be adequately fit using a simple free volume approach with either a concentration or temperature superposition. It was noted that the free volume parameters derived from the self-diffusion data are the same as those which can be derived from deuterium NMR transverse relaxation time measurements of the polymer in the same systems.
F. D. Blum et al., "Solvent Self-diffusion and Transverse Relaxation in Concentrated Polymer Solutions," American Chemical Society, Polymer Preprints, Division of Polymer Chemistry, American Chemical Society (ACS), Jan 1985.
Article - Conference proceedings
© 1985 American Chemical Society (ACS), All rights reserved.