Effect of cosolvents on the self-assembly of a non-ionic polyethylene oxide–polypropylene oxide–polyethylene oxide block copolymer in the protic ionic liquid ethylammonium nitrate

Add time:08/04/2019    Source:sciencedirect.com

The effect of water and methanol on the self-assembled structures formed by the polyethylene oxide–polypropylene oxide–polyethylene oxide block copolymer Pluronic P123 in ethylammonium nitrate was investigated by small angle X-ray scattering (SAXS). Two ternary phase diagrams were established. The addition of water had only a minor effect on the liquid crystal structures, however methanol had a significant effect, which was attributed to methanol being a good solvent for both the PEO and PPO blocks of the polymer. No lyotropic liquid crystal phases were retained when methanol reached 25 wt%. The phase behaviour did not change significantly over the temperature range from 25 to 45 °C.

We also recommend Trading Suppliers and Manufacturers of ethylammonium tetrafluoroborate(1-) (cas 12070-78-9). Pls Click Website Link as below: cas 12070-78-9 suppliers

Prev:Ethylammonium nitrate in high temperature stable microemulsions
Next:Application of the Bahe's pseudolattice-theory to water—1-butyl-3-methylimidazolium tetrafluoroborate (bmimBF4) mixtures at 298.15 K)