The role of the alkyl chain length and of the headgroup on the thermal behavior of mixtures of ASC8 (ascorbyl octanoate) and ASC16 (ascorbyl hexadecanoate) was investigated through differential scanning calorimetry, small- and wide-angle X-ray scattering, and Fourier transform infrared spectroscopy experiments. The formation of two eutectics and of a peritectic point was found from the phase diagram, and their structural properties were studied. The results were compared by investigating the thermal behavior of mixtures of octanoic acid and hexadecanoic acid. The findings provide insights into the role of the ascorbyl headgroups on the intermolecular interactions that determine the phase behavior of the two ascorbic acid based surfactants in the solid state.

Effect of the alkyl chains and of the headgroups on the thermal behavior of ascorbic acid surfactants mixtures / C.Venturini; C.Pomposi; M.Ambrosi; E.Carretti; E.Fratini; P.Lo Nostro; P.Baglioni. - In: JOURNAL OF PHYSICAL CHEMISTRY. B, CONDENSED MATTER, MATERIALS, SURFACES, INTERFACES & BIOPHYSICAL. - ISSN 1520-6106. - STAMPA. - 118:(2014), pp. 3053-3062. [10.1021/jp412127y]

Effect of the alkyl chains and of the headgroups on the thermal behavior of ascorbic acid surfactants mixtures

AMBROSI, MOIRA;CARRETTI, EMILIANO;FRATINI, EMILIANO;LO NOSTRO, PIERANDREA;BAGLIONI, PIERO
2014

Abstract

The role of the alkyl chain length and of the headgroup on the thermal behavior of mixtures of ASC8 (ascorbyl octanoate) and ASC16 (ascorbyl hexadecanoate) was investigated through differential scanning calorimetry, small- and wide-angle X-ray scattering, and Fourier transform infrared spectroscopy experiments. The formation of two eutectics and of a peritectic point was found from the phase diagram, and their structural properties were studied. The results were compared by investigating the thermal behavior of mixtures of octanoic acid and hexadecanoic acid. The findings provide insights into the role of the ascorbyl headgroups on the intermolecular interactions that determine the phase behavior of the two ascorbic acid based surfactants in the solid state.
2014
118
3053
3062
C.Venturini; C.Pomposi; M.Ambrosi; E.Carretti; E.Fratini; P.Lo Nostro; P.Baglioni
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/844094
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