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Thermotropic Phase Behavior of Choline Soaps

Klein, Regina ; Dutton, Helen ; Diat, Oliver ; Tiddy, Gordon J. T. ; Kunz, Werner



Abstract

Choline carboxylates (ChCm with m = 12-18) are simple biocompatible anionic surfactants with very low Krafft temps., possessing a rich aq. phase behavior. In the present work, we have investigated the thermotropic mesomorphism of anhyd. ChCm salts for m = 12-18. Transition temps. and enthalpies detd. by differential scanning calorimetry reveal that all investigated compds. exhibit three ...

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