Composite Bilayer Polymer Membranes with Hydrophobic Layers
- Authors: Kravets L.I.1, Altynov V.A.1, Zagonenko V.F.1, Lizunov N.E.1, Satulu V.2, Mitu B.2, Dinescu G.2
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Affiliations:
- Flerov Laboratory of Nuclear Reactions
- National Institute for Laser, Plasma and Radiation Physics
- Issue: Vol 9, No 5 (2018)
- Pages: 777-784
- Section: Physicochemical Principles of Creating Materials and Technologies
- URL: https://journals.rcsi.science/2075-1133/article/view/207656
- DOI: https://doi.org/10.1134/S2075113318050179
- ID: 207656
Cite item
Abstract
Bilayer composite membranes (CMs) are prepared by depositing a polymer layer onto track-etched polypropylene (PP) membrane by using plasma polymerization of hexamethyldisilazane (HMDSN). The chemical structure, wetting properties, and morphological characteristics of the prepared CMs are investigated. By depositing the plasma-polymerized polymer, we obtain CMs with two hydrophobic layers, of which one is the initial PP membrane, serving as a matrix. This layer has a water contact angle of 120°. The other layer, which was formed during plasma polymerization of HMDSN, contains nitrogen-containing functional groups, along with minor amounts of oxygen-containing, mainly carboxylic, groups. The water contact angle of this layer is ~98°. Deposition of a polymer film by plasma-assisted polymerization results in smoothing surface asperities of the initial (matrix) membrane, a considerable decrease in pore diameter, and alteration of pore shape; namely, the pores acquire an asymmetric (conical) profile.
About the authors
L. I. Kravets
Flerov Laboratory of Nuclear Reactions
Author for correspondence.
Email: kravets@jinr.ru
Russian Federation, Dubna, 141980
V. A. Altynov
Flerov Laboratory of Nuclear Reactions
Email: kravets@jinr.ru
Russian Federation, Dubna, 141980
V. F. Zagonenko
Flerov Laboratory of Nuclear Reactions
Email: kravets@jinr.ru
Russian Federation, Dubna, 141980
N. E. Lizunov
Flerov Laboratory of Nuclear Reactions
Email: kravets@jinr.ru
Russian Federation, Dubna, 141980
V. Satulu
National Institute for Laser, Plasma and Radiation Physics
Email: kravets@jinr.ru
Romania, Magurele, Bucharest, 077125
B. Mitu
National Institute for Laser, Plasma and Radiation Physics
Email: kravets@jinr.ru
Romania, Magurele, Bucharest, 077125
G. Dinescu
National Institute for Laser, Plasma and Radiation Physics
Email: kravets@jinr.ru
Romania, Magurele, Bucharest, 077125
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