Sodium Di-n-dodecyl Phosphate Vesicles in Aqueous Solution: Effects of Ethanol, Propanol, and Tetrahydrofuran on the Gel to Liquid Phase Transition

Autor:	PM Cullis, Dick Hoekstra, M Waters, Jan B. F. N. Engberts, Butt, Rk Mohanty, Barbara Briggs, M.J Blandamer
Rok vydání:	1994
Předmět:	Ethanol Aqueous solution Vesicle Sodium Inorganic chemistry chemistry.chemical_element Alcohol Surfaces and Interfaces Condensed Matter Physics Phosphate Propanol chemistry.chemical_compound chemistry Electrochemistry General Materials Science Spectroscopy Tetrahydrofuran
Zdroj:	Langmuir. 10:3488-3492
ISSN:	1520-5827 0743-7463
DOI:	10.1021/la00022a022
Popis:	For aqueous solutions containing vesicles formed by sodium di-n-dodecyl phosphate, the gel to liquid-crystal transition occurs near 35 degrees C, the temperature T-m. When ethanol is added, T-m decreases, but the scan shows evidence of several transitions as more alcohol is added. The effect of added THF and propanol is similar but more dramatic. The scans are similarly complicated if the aqueous solutions are prepared using a solution of DDP in ethanol. However, vesicle ethanol interactions are endothermic although the shift in T-m points to direct binding of alcohol into the vesicle.
Databáze:	OpenAIRE
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