Abstract
The morphology and supramolecular structure of a polyacrylamide-formaldehyde ultrafiltration membrane synthesized by electropolymerization of monomers are studied. The experimental methods include transmission microscopy (differential interference contrast), atomic force microscopy, and scanning electron microscopy. It is established that the membrane is asymmetrical and comprise two layers, specifically, a dense near-cathode (selective) layer and a loose matrix layer. A mechanism of formation of the layers is proposed. The microgeometry of the surface of films is examined. The effect of electropolymerization conditions on the thickness of the membrane and the near-cathode layer and the coefficient of linear thermal expansion is studied.
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Original Russian Text © MA. Karpenko, L.G. Kolzunova, A.A. Karpenko, 2006, published in Elektrokhimiya, 2006, Vol. 42, No. 1, pp. 100–109.
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Karpenko, M.A., Kolzunova, L.G. & Karpenko, A.A. Structural and morphological investigation of electrochemically synthesized polyacrylamide ultrafiltration membranes. Russ J Electrochem 42, 89–97 (2006). https://doi.org/10.1134/S1023193506010149
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DOI: https://doi.org/10.1134/S1023193506010149