Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Swelling dynamics of surface-attached hydrogel thin films in vapor flows   Hydrogel coatings absorb water vapor - or other solvents - and, as such, are
good candidates for antifog applications. In the present study, the transfer of
vapor from the atmosphere to hydrogel thin films is measured in a situation
where water vapor flows alongside the coating which is set to a temperature
lower that the ambient temperature. The effect of the physico-chemistry of the
hydrogel film on the swelling kinetics is particularly investigated. By using
model thin films of surface-grafted polymer networks with controlled thickness,
varied crosslinks density, and varied affinity for water, we were able to
determine the effect of the film hygroscopy on the dynamics of swelling of the
film. These experimental results are accounted for by a diffusion-advection
model that is supplemented with a boundary condition at the hydrogel surface:
we show that the latter can be determined from the equilibrium sorption
isotherms of the polymer films. Altogether, this paper offers a predictive tool
for the swelling kinetics of any hydrophilic hydrogel thin films.

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The categories of this paper are: quant-ph
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The categories of this paper are: hep-th
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The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an