Abstract
Quasi-elastic incoherent neutron scattering (QENS) was used to study the dynamics of 4, 29, and 60 wt % solutions of fructose in deionized water at 300 K. Both the jump-diffusion and stretched exponential models were used to analyze the data, enabling the determination of the structural relaxation rate 1/τ and the stretch exponent β as functions of fructose concentration. The analysis of the neutron scattering data based on the jump-diffusion model is consistent with a transition from continuous to "hopping" or jump diffusion at 29 wt % fructose concentration observed in recent simulations of this same system. The analysis based on the stretched exponential model suggests that this change occurs at a higher fructose concentration.
Original language | English (US) |
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Pages (from-to) | 7799-7804 |
Number of pages | 6 |
Journal | Journal of Physical Chemistry B |
Volume | 105 |
Issue number | 32 |
DOIs | |
State | Published - Aug 16 2001 |
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
- Materials Chemistry