The influence of glassy and amorphous states on water transport in aerosol

When a particle is dried, the absence of heterogeneous surfaces for nucleation leads to the solutes achieving extremely high concentrations/supersaturations. When the aerosol is composed of organic components, this can lead to highly viscous states. While  a water droplet has a viscosity of 1E-3 Pa s, organic aerosol can infact become glassy with a viscosity of 1E12 Pa s or even higher. We are investigating the influence of such highly viscous states on the transport of water in atmospheric aerosol.

For examples, see:

J.W. Lu, A.M. J. Rickards, J.S. Walker, K.J. Knox, R.E. H. Miles, J.P. Reid and R. Signorell, 'Timescales of water transport in viscous aerosol: measurements on sub-micron particles and dependence on conditioning history', Physical Chemistry Chemical Physics 16 (2014) 9819-9830 - pdf

D.L. Bones, J.P. Reid, D.M. Lienhard, and U.K. Krieger, 'Comparing the mechanism of water condensation and evaporation in glassy aerosol', Proceedings of the National Academy of Sciences 109 (29) (2012) 11613-11618 - pdf

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