Effect of cosurfactant on water solubilization in supercritical carbon dioxide microemulsions

Autor:	Yukiya Hakuta, Hironobu Kunieda, Kenji Aramaki, Zameer Shervani, Yutaka Ikushima
Rok vydání:	2006
Předmět:	Supercritical carbon dioxide Butanol Sodium chemistry.chemical_element chemistry.chemical_compound Colloid and Surface Chemistry chemistry Carbon dioxide Organic chemistry Microemulsion Spectroscopy Water solubilization Nuclear chemistry Phase diagram
Zdroj:	Colloids and Surfaces A: Physicochemical and Engineering Aspects. 289:229-232
ISSN:	0927-7757
DOI:	10.1016/j.colsurfa.2006.04.040
Popis:	Water solubilization in supercritical carbon dioxide (SC CO 2 ) microemulsions prepared using F-AOT (fluorinated-sodium bis (2-ethylhexyl) sulfosuccinate) analogues has been compared in the presence of cosurfactant n -butanol. At pressure 44 MPa and 35 °C, the addition of n -butanol to di-HCF4 (sodium bis(1 H ,1 H ,5 H , octafluoropentyl) sulfosuccinate)/SC CO 2 microemulsion enhanced the water solubilization from W 0 = 30 to 45. Increasing the amount of cosurfactant further enhanced the water solubilization. At R = 10, a maximum amount of water W 0 = 49 was dissolved in di-HCF4/SC CO 2 system which is highest reported so far in SC CO 2 microemulsions. W 0 and R represent the molar ratio of water- and n -butanol-to-surfactant, respectively. F-AOT/SC CO 2 microemulsions were characterized by pressure dependent water solubilization phase diagram and high pressure UV absorption spectroscopy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b3d36cb9f13871e0744faa9edd17accf https://doi.org/10.1016/j.colsurfa.2006.04.040 Zobrazit plný text záznamu Full Text from ScienceDirect