Title of article :
NMR Q-space microscopy of concentrated oil-in-water emulsions
Author/Authors :
Hills، نويسنده , , B.P and Manoj، نويسنده , , P and Destruel، نويسنده , , C، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Pages :
15
From page :
319
To page :
333
Abstract :
The pulsed field gradient stimulated echo technique with selective excitation is used to probe the diffusion of water in the continuous phase of concentrated oil-in-water emulsions. The dependence of the echo amplitude, S(q,Δ), on wavevector, q, and diffusion time, Δ, shows that the water diffusion propagator is sensitive to emulsion microstructure. This is analyzed using a multiple exponential time series expansion of S(q,Δ) in Δ, with wavevector dependent expansion coefficients. These coefficients are compared with predictions from several theoretical models for three types of stable emulsion, each differing in microstructure. The relationship between the nuclear magnetic resonance q-space measurements and bulk rheology for all three types of emulsion is also explored.
Keywords :
water , diffusion , NMR , emulsions , rheology
Journal title :
Magnetic Resonance Imaging
Serial Year :
2000
Journal title :
Magnetic Resonance Imaging
Record number :
1830564
Link To Document :
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