Title of article
NMR relaxation studies of porous sol-gel glasses
Author/Authors
Wonorahardjo، نويسنده , , S. and Ball، نويسنده , , G. Raumati Hook، نويسنده , , J. and Moran، نويسنده , , G.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
3
From page
511
To page
513
Abstract
2H relaxation times T1, T1ρ and T2 for D2O in silica sol-gels are used to monitor porosity and surface interactions within the silica framework as a function of aging. Tetramethoxysilane gels are compared with composites containing low levels of poly(vinyl alcohol) (PVA) prepared under acidic conditions. Non-exponential decay of magnetisation in T1ρ and T2 experiments is attributed to the fractal nature of the pore structure.
Keywords
Relaxation times , Fractal geometry , Sol-gel , Porous silica , 2H NMR
Journal title
Magnetic Resonance Imaging
Serial Year
1998
Journal title
Magnetic Resonance Imaging
Record number
1828002
Link To Document