Related Experiment Videos
Measurements of diffusion in porous polyethylene powder using PFGSTE NMR
1Department of Physical Chemistry, Norwegian University of Science and Technology, Trondheim, Norway. johnsel@chembio.ntnu.no
Magnetic Resonance Imaging
|November 6, 1998
Abstract:
Pulsed field gradient stimulated echo (PFGSTE) nuclear magnetic resonance (NMR) has been applied to study the diffusion of toluene in porous semicrystalline polyethylene powder. A pulse sequence with unequal bipolar gradients that reduces effects from internal gradients was used. The effects of different diffusion regimens and restricted diffusion in this system were indicated by use of a simple two-component analysis of the diffusion data.