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Solid–liquid Phase Behavior of Binary Fatty Acid Mixtures by Tohru Inoue; Yusuke Hisatsugu; Ruri Ishikawa; Masao Suzuki is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Solid–liquid Phase Behavior of Binary Fatty Acid Mixtures about?

Solid-liquid phase behavior was investigated for binary fatty acid mixtures composed of oleic acid (OA; cis-9-octadecenoic acid) and saturated fatty acids, lauric acid (LA; dodecanoic acid), myristic acid (MA; tetradecanoic acid), and palmitic acid (PA; hexadecanoic acid), by means of differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR). When the mixture was heated immediately after the solidification from the melt, the heat effect due to the ␥-to-␣ transformation of OA varied depending on the composition of the mixture. However, the mixture subjected to an annealing at the temperature slightly below the melting temperature provided the transformation at constant temperature which corresponds to the ␥-to-␣ transformation temperature of pure OA. This suggests that a solid phase formed by cooling of the melt of the mixture is not in an equilibrium state, but it relaxes to a stable solid during the annealing process. The T-X phase diagrams of these mixtures constructed from the DSC measurements demonstrate that the two fatty acid species are completely immiscible in a solid phase regardless of the type of polymorphs of OA, ␣or ␥-form. According t

Who reads Solid–liquid Phase Behavior of Binary Fatty Acid Mixtures?

Author

Tohru Inoue; Yusuke Hisatsugu; Ruri Ishikawa; Masao Suzuki

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0009-3084)

Published

2004

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)