2001/08/21 by J. P. Butler, James P. Butler, R. W. Mair +11 · 1 citation
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #Atomic and Subatomic Physics Research #NMR spectroscopy and applications #cond-mat.soft
paper · pdf · doi:10.1088/0953-8984/14/13/103
14 pages of text, 4 figures
arxiv created 2001/08/21 · openalex publication_date 2002/03/22 · arxiv updated 2009/11/30 · openalex created_date 2021/02/01 · openalex updated_date 2026/07/30
We demonstrate a minimally invasive nuclear magnetic resonance (NMR) technique that enables determination of the surface-area-to-volume ratio (S/V) of soft porous materials from measurements of the diffusive exchange of laser-polarized 129Xe between gas in the pore space and 129Xe dissolved in the solid phase. We apply this NMR technique to porous polymer samples and find approximate agreement with destructive stereological measurements of S/V obtained with optical confocal microscopy. Potential applications of laser-polarized xenon interphase exchange NMR include measurements of in vivo lung function in humans and characterization of gas chromatography columns.