Lee, Hwa-Jin published the artcileMechanism for Transition of Reverse Cylindrical Micelles to Spherical Micelles Induced by Diverse Alcohols, HPLC of Formula: 111-87-5, the main research area is reverse micelle lecithin calcium chloride propanol pentanol hexanol octanol.
Herein, the effects of various alcs. on lecithin/CaCl2 organogels are investigated. Mixtures of lecithin and CaCl2 form reverse cylindrical micelles, resulting in optically transparent organogels. The addition of various alcs. to a mixture of lecithin and CaCl2 induces a decrease in viscosity through which reverse cylindrical micelles are transformed into spherical micelles (or short cylindrical micelles). Long-hydrocarbon-chain alcs. decrease the viscosity of lecithin/CaCl2 mixtures more efficiently. Hydrogen bonding and hydrocarbon chain interactions between lecithin and alc. play important roles in the morphol. transition. More importantly, isothermal titration calorimetry was conducted to obtain thermodn. variables such as the enthalpy, equilibrium constant, Gibbs free energy, entropy, and stoichiometry of the associated mols. observed in the transition. It was found that the transition is an entropically driven process, in which the endothermic and exothermic behaviors were observed depending on the hydrocarbon chain length in the alc. In addition, the enthalpy for the association of the alc. with lecithin showed a linear relationship depending on the hydrocarbon chain length, in which the magnitude of hydrogen bonding and hydrocarbon chain interactions was obtained quant. To the best of our knowledge, this is the first study reporting the thermodn. properties of the morphol. transition observed in a reverse self-assembly process.
Langmuir published new progress about Enthalpy. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, HPLC of Formula: 111-87-5.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts