首页|Solubilization of Phenol in Micelles of (Ethylene Oxide)_(78)(Propylene Oxide)_(30)(Ethylene Oxide)_(78) Pluronic F68 Tri-Block Copolymer in Aqueous Suspensions
Solubilization of Phenol in Micelles of (Ethylene Oxide)_(78)(Propylene Oxide)_(30)(Ethylene Oxide)_(78) Pluronic F68 Tri-Block Copolymer in Aqueous Suspensions
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NSTL
Taylor & Francis
The effect of phenol solubilization on the behavior of (ethylene oxide)78-propylene oxide)_(30)-(propylene oxide)_(78) (EO_(78)-PO_(30)-EO_(78)) triblock copolymer, Pluronic F68 (F68), in aqueous suspensions was investigated by rheology. We have shown that for the ternary F68/ water/phenol mixture, the rheological properties and the conformational changes of F68 depended strongly on the amounts of phenol. The 20% F68 suspensions begin with a Newtonian behavior for small amounts of phenol and lose this behavior to become a non- Newtonian liquid plastic with increasing phenol concentrations (50% phenol); then the suspension became Newtonian again for 75% and 100% phenol. The results are attributed to the addition of phenol resulting in a sphere-to-rod micellar transition.
NSTL
Taylor & Francis
