کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
613012 | 1454615 | 2006 | 11 صفحه PDF | دانلود رایگان |
Solubilization of tributylphosphate (TBP), a polar oil, in various micellar solutions of Pluronic has been investigated by turbidimetry emphasizing the effect of temperature and the role of the PPO and PEO blocks on the phase behavior of the three components systems (Pluronic–TBP–water). [Temperature–composition] diagrams allow monophasic and diphasic domains to be delimited. Two temperatures are shown to have a determining effect on the phase behavior (TBP solubilization); the well known cloud point temperature (CPT, here defined for the three components system) and the solubilization minimum temperature (SMT) which is defined as the lowest temperature allowing solubilization of TBP in the system. Both temperature depend on the copolymer structure and, interestingly, are directly related to the TBP concentration in the medium. Monophasic microemulsions are observed when the temperature ranges between the SMT and the CPT. When T
Evolution of the cloud point temperature (CPT) and the solubilization minimum temperature (SMT) of a micellar Pluronic (L64) solution following addition of tributylphosphate. SMT = lowest temperature allowing solubilization of TBP in the system.Figure optionsDownload as PowerPoint slide
Journal: Journal of Colloid and Interface Science - Volume 300, Issue 2, 15 August 2006, Pages 713–723