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The Nanostructure Studies of Surfactant-Free- Microemulsions in Fragrance Tinctures (CROSBI ID 221545)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Bošković, Perica ; Sokol, Vesna ; Touraud, Didier ; Prkić, Ante ; Giljanović, Josipa The Nanostructure Studies of Surfactant-Free- Microemulsions in Fragrance Tinctures // Acta chimica slovenica, 63 (2016), 1; 138-143. doi: 10.17344/acsi.2015.2037

Podaci o odgovornosti

Bošković, Perica ; Sokol, Vesna ; Touraud, Didier ; Prkić, Ante ; Giljanović, Josipa

engleski

The Nanostructure Studies of Surfactant-Free- Microemulsions in Fragrance Tinctures

As it was shown recently that nanostructures can exist in water-ethanol-citronellol tinctures, a deeper investigation of these media was performed using conductivity, UV-Vis and FT-IR spectroscopy techniques. Different regimes of conductivity, depending on the water content, an increase of the polarity of the polar pseudo-phase with increasing water content, and even the presence of free water molecules at higher water content are observed, just as in classical surfactant-based microemulsions. The percolation model, generally used to fit conductivity data in surfactant based microemulsion having a weak interfacial film, can be used to fit our conductivity data below a critical water content 〖(ϕ〗_w^p) with a critical exponent typical of dynamic percolation. In presence of higher water contents, superior to ϕ_w^p, our conductivity data cannot be fitted neither with a static nor a dynamic percolation model. As in surfactant-based microemulsions, an increase of polarity of the microenvironment with increasing water content can be postulated using respectively the UV-Vis wavelength absorption band (λmax) of methyl orange and performing FT-IR spectra.

nanostructure ; citronellol ; microemulsions ; UV-Vis spectroscopy ; conductivity ; FT-IR spectroscopy

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Podaci o izdanju

63 (1)

2016.

138-143

objavljeno

1318-0207

1580-3155

10.17344/acsi.2015.2037

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Kemija

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