Rheological Properties and Reverse Micelles Conditions of PEO-PPO-PEO Pluronic F68 : Effects of Temperature and Solvent Mixtures

Abstract EN

The rheological properties of Pluronic F68 were dissolved in various water/organic liquid mixtures over a wide range of temperatures, all at a concentration of 20 mg/mL.

We have considered the following binary mixtures: Pluronic F68/water, F68/p-xylene, and F68/phenol.

Various conformational transitions were detected and interpreted.

We have also shown that these mixtures retain a Newtonian behavior independently of temperature and conformational changes.

For ternary F68/p-xylene/water, F68/phenol/water, and F68/water/phenol mixtures, the behaviour of the solution is intimately related to the temperature and the amount of water and organic solvent added.