Formation and Characterization of Mixed Copper Sulfide-Copper Selenide Layers on the Polyamide 6 Surface

• Autorzy: Petrašauskiene N. , Janickis V. , Šukyte J.
• Języki publikacji: EN

Abstrakty

EN

IR and UV absorption spectra show that selenopentathionate anions are sorbed into the polyamide 6 films if they are treated with 0.025-0.2 mol/dm3 solutions of potassium selenopentathionate, K2SeS4O6, in 0.1 mol/dm3 HCl at 30 and 50 C. The concentration of sorbed selenopentathionate ions increases with the increase of the duration of treatment, concentration and temperature of SeS4O6 2 solution. The mixed copper sulfide-copper selenide, CuxS-CuySe, layers are formed in the surface of polyamide 6 after the treatment of chalcogenized polymer with Cu(II/I) salt solution (10 min, 78 C): the anions SeS4O6 2 containing selenium and sulfur atoms of low oxidation state react with the copper(II/I) ions. The conditions of a polymer initial chalcogenation determine the concentration of copper and the composition of chalcogenide layer: the concentration of copper in the chalcogenide layer increases with the increase of initial chalcogenation duration, temperature and the concentration of solution. The results of XRD confirmed the formation of mixed copper sulfide-copper selenide layers on the surface of polyamide 6: four copper sulfide phases, chalcocite, Cu2S, digenite, Cu1.8S, djurleite, Cu1.9375S, anilite, Cu1.75S, and five copper selenide phases, bellidoite, Cu2Se, umangite, Cu3Se2, klockmannite, CuSe, krutaite, CuSe2 and Cu2Sex, were identified in the layers. The phase composition of layers changes depending on the conditions of the polymer initial treatment in a K2SeS4O6 solution. The chemical composition of CuxS-CuySe layers was characterized by energy dispersive spectroscopy XPS. XPS results confirmed the formation of mixed copper chalcogenides of various phases on the surface of a polyamide 6. At room temperature, electrical sheet resistance of the layers vary from 12.2 / to 4.7 MOmega/ . The determined regularities enable formation of the layers of copper sulfide-copper selenide on the surface of a polyamide 6 of desirable composition and conductivity by the sorption method using the solutions of potassium selenopentathionate as precursor.

Słowa kluczowe

EN

selenopentathionate; polyamide; sorption; copper chalcogenides layers

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2009
• Tom: Vol. 83, nr 3
• Strony: 401--414
• Opis fizyczny: Bibliogr. 38 poz., rys.

Twórcy

autor

Petrašauskiene N.

autor

Janickis V.

autor

Šukyte J.

• Department of Inorganic Chemistry, Kaunas University of Technology, Radvilenu str. 19, LT-50254 Kaunas 9, Lithuania Ph: [phone]; Fax: [phone],

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