| Title |
Studies on application as precursor of selenotrithionate and the mechanism of seleniumization polyamide 6 films |
| Another Title |
Selenotritionato kaip prekursorius panaudojimas ir poliamido 6 plėvelės seleninimo mechanizmo tyrimas. |
| Authors |
Ivanauskas, Remigijus |
| Full Text |
|
| Is Part of |
Materials science = Medžiagotyra.. Kaunas : Technologija. 2009, vol. 15, no. 3, p. 243-249.. ISSN 1392-1320. eISSN 2029-7289 |
| Keywords [eng] |
Selenotrithionate ; Polyamide 6 ; Sorption-diffusion ; IR and UV spectroscopy ; Copper selenide layers |
| Abstract [eng] |
Using of UV, VIS and IR absorption spectra it is shown that the selenotrihionate anions (Se(SO3)22–) are sorbed-diffused into a polyamide 6 films if they are treated with the solution (0.05 moldm–3) potassium selenotrithionate K2Se(SO3)2 in 0.1 moldm–3 HCl at 60 °C up to 4.0 h. The study of UV, VIS and IR absorption spectra and the chemical analyzes of polyamide 6 films treated with solution of potassium selenotrithionate have proved that sorbed Se(SO3)22– anions decompose in polymer with time. It is also determined selenium containing anions remained in polyamide 6 but sulphur contained anions were washed out. The concentration of sorbed-diffused selenotrithionate ions increases with the increase in duration of treatment up to 1.5 h when the decomposition of sorbed-diffused anions begun. The atomic force microscopy (AFM) images of polyamide 6 film show that the surface of polymer is covered with the separate island of selenium when selenization time of polyamide 6 is 1.5 h. With the longer selenization time the island of selenium spread denser on surface of polyamide 6. The copper selenide, CuxSe, layers are formed in the surface of polyamide 6 film if the selenized polymer is treated with Cu(I–II) salt solution (10 min, 80 °C): the anionic particles Se(SO3)22– and its decomposition products containing selenium atoms of low oxidation state react with the copper(I–II) ions. The X-ray diffraction analysis confirmed the formation of copper selenide layers in the surface of polyamide 6. Three phases – CuSe2, Cu2–xSe and Cu2Se were identified in the copper selenide layers by XRD analysis. The modified polymer from dielectric become electroconductive (56.8 Ω/– 135.0 Ω/). |
| Published |
Kaunas : Technologija |
| Type |
Journal article |
| Language |
English |
| Publication date |
2009 |
| CC license |
|
