Abstract
The heterogeneous surface gradient micro- and macrostructures of various designs, including extensive channels, were analyzed on films of low-density polyethylene formed through the serial treatment with fluorinating and sulfuring reagents in combination with mechanical modification. Approaches to the development of systems for the directed microfluidic transfer of target compounds on film surfaces by “molecular rail channels,” which is based on significant differences in the physicochemical properties of modified regions, were discussed. A mathematical model of mass transfer through the gradient surface structures of a given chemical and structural design was developed to estimate the possibility of their use for the directed transfer of target compounds.
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Original Russian Text © V.G. Nazarov, V.P. Stolyarov, M.V. Gagarin, 2015, published in Vysokomolekulyarnye Soedineniya. Ser. A, 2015, Vol. 57, No. 3, pp. 274–283.
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Nazarov, V.G., Stolyarov, V.P. & Gagarin, M.V. Modeling the directed diffusion of fluid through the microchannels on the surfaces of polymer films. Polym. Sci. Ser. A 57, 365–372 (2015). https://doi.org/10.1134/S0965545X15030104
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DOI: https://doi.org/10.1134/S0965545X15030104