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Article Dans Une Revue Journal of Alloys and Compounds Année : 2009

Fatty acids polymorphism and solid-state miscibility Pentadecanoic acid–hexadecanoic acid binary system

Résumé

The pentadecanoic acid–hexadecanoic acid (C15H29OOH–C16H31OOH) binary system is dealt with in this article. The polymorphism of 20 mixed materials has been investigated combining calorimetric measurements, isothermal and versus temperature X-ray powder diffraction and also FTIR spectroscopy. In particular, the cell parameters of the stable forms, temperatures and heats of phase changes for the two constituents and a proposal of phase diagram are given in this article. Three solid forms are created by mixing in addition with the four solid forms of the pure components. All these solid forms are stabilized on narrow domains of composition, implying a reduced solid-state miscibility of the pentadecanoic and hexadecanoic acids.

Dates et versions

hal-00405283 , version 1 (20-07-2009)

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Citer

Gabin Gbabode, Philippe Négrier, Denise Mondieig, Evelyn Moreno, Teresa Calvet, et al.. Fatty acids polymorphism and solid-state miscibility Pentadecanoic acid–hexadecanoic acid binary system. Journal of Alloys and Compounds, 2009, 469, pp.539-551. ⟨10.1016/j.jallcom.2008.02.047⟩. ⟨hal-00405283⟩

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