| Title |
Dodecathionic acid as precursor for formation of semiconducting and conducting layers on the surface of polyamide 6 |
| Another Title |
Dodekationato rūgštis – puslaidininkinių ir elektrai laidžių sluoksnių sudarymo poliamido 6 paviršiuje pirmtakė. |
| Authors |
Usonytė, Gerda ; Janickis, Vitalijus ; Kreivėnienė, Nijolė |
| Full Text |
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| Is Part of |
Materials science = Medžiagotyra.. Kaunas : Technologija. 2008, vol. 14, no. 1, p. 34-39.. ISSN 1392-1320. eISSN 2029-7289 |
| Keywords [eng] |
Dodecathionic acid ; Polyamide ; Sorption-diffusion ; Copper sulfide layers |
| Abstract [eng] |
By a study of IR and UV absorption spectra it is shown that the dodecathionate anions, S12O6 2–, are sorbed-diffused into a polyamide 6 films if they are treated with the 4·10-³ molּdm-³ water solution of dodecathionic acid, H2S12O6, at the temperatures of 10 °C − 40 °C. The values of sulfur concentration obtained in polyamide 6 (up to 11 mmolּcm-³) are significantly higher than those, obtained in the studies in which the sorption of pentathionate ions from the K2S5O6 solution or from 2·10-³ molּdm-³ water solution of dodecathionic acid, H2S12O6, by PA films has been studied. The concentration of sorbed dodecathionate ions increases with the increase of time of treatment, concentration and temperature of a H2S12O6 solution. The copper sulfide, CuxS, layers are formed in the surface of polyamide 6 film if the sulfurized polymer is treated with a solution of Cu(II/I) salt at 80 °C temperature: the anionic particles S12O6 2– containing sulfur atoms of low oxidation state react with the copper ions. The conditions of a polymer initial sulfurization determine the concentration of copper and the composition of sulfide layer: the concentration of copper in the polyamide 6 film increases with the increase of time and temperature of initial sulfurization, and varies from ~0.5 mmol·cm-³ to ~3.0 mmol·cm-³; the stoichiometrical composition of CuxS layers on polyamide 6 formed according the data of chemical analysis varies from Cu~0.3S to Cu~1.0S. The regularities determined enable formation by sorption-diffusion method of electrically conductive (~60 Ω/ – ~1.0 Ω/) copper sulfide layers using the solution of dodecathionic acid as a polyamide 6 sulfurization agent. |
| Published |
Kaunas : Technologija |
| Type |
Journal article |
| Language |
English |
| Publication date |
2008 |
| CC license |
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