Abstract
Films of copper sulfides of varying composition are formed in a surface matrix of polyethylene by a sorption—diffusion method using solutions of higher polythionic acids, H2SnO6 (n > 6), as sulfuring agents. In the first stage of the process, elemental sulfur diffuses into the polymer when keeping it in a solution of higher H2SnO6. In the second stage, a film of nonstoichiometric CuxS (x= 1.12-1.95) is obtained when the sulfured PE is treated with a solution of copper (I—II) salt. The physical properties of the copper sulfide film depend on the thickness and the composition of the film. The films obtained are formed from three-phases: jarowwite (Cu1.12–1.18S), anilite (Cu1.7–1.8S), and djurleite (Cu1.91-1.95S). The sulfide with composition close to CuS has the highest electrical conductivity.
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© 2000 Springer-Verlag
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Ancutiene, I., Janickis, V. (2000). Chemical deposition of copper sulfide films in the surface of polyethylene by the use of higher polythionic acids. In: Razumas, V., Lindman, B., Nylander, T. (eds) Surface and Colloid Science. Progress in Colloid and Polymer Science, vol 116. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44941-8_20
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DOI: https://doi.org/10.1007/3-540-44941-8_20
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