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Vpliv dolžine alkilne verige različnih kationskih tenzidov na tvorbo kompleksov z anionskim barvilom = The influence of alkyl chain lenght of different cationic surfactants on complex formation with anionic dyesForte-Tavčer, PetraSpremljali smo tvorbo komplekov med anionskim barvilom Acid Orange 7 in dvema vrstama kationskih tenzidov: alkilpiridinijevimi in alkiltrimetilamonijevimi halidi. Preučevali smo vpliv dolžine alkilne ... verige obeh vrst tenzidov na zmožnost kompleksiranja. Kompleksiranje smo preučevali spektrofotometrično s pomočjo metode zveznega spreminjanja oziroma z Jobovo metodo. Določili smo ravnotežne konstante interakcij med molekulami barvila Acid Orange 7 in molekulami cetilpiridinijevega klorida ter cetiltrimetilamonijevega bromida pri 24 oC. Ugotovili smo, da je nastajanje kompleksa odvisno predvsem od dolžine alkilne verige tenzida, ne pa toliko od njegove osnovne kemijske zgradbe. Nastajanje kompleksov lahko spremljamo šele pri tenzidih s 16 C atomi v alkilni verigi, pri tenzidih z 12 C atomi le pri zelo visokih koncentracijah, pri tenzidih s krajšimi verigami pa do kompleksiranja ne pride. To velja tako za tenzide s piridinijevim obročem kot za tistes kvarterno amonijevo soljo v strukturi.Source: Zbornik predavanj in posterjev = Proceedings (Str. 276-278)Type of material - conference contributionPublish date - 1996Language - slovenianCOBISS.SI-ID - 433520
Author
Forte-Tavčer, Petra
Topics
tekstilstvo |
anionska barvila |
surfaktanti |
kompleksiranje |
spektrofotometrija
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Forte-Tavčer, Petra | 11766 |
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