The complex phase separation process of thermoresponsive polyphosphoesters (PPEs) with an identical side-group structure but different copolymer compositions is characterized by electron paramagnetic resonance (EPR) spectroscopy. In water these PPEs show LCST-type behavior, in which water-rich and slightly polymer-enriched nanoscopic regions are highly water swollen, and nanoscopic inhomogeneities with the lowest polarity contrast measured so far develop 8 °C below the macroscopic cloud point.
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Nanoscopic hydrophilic/hydrophilic phase-separation well below the LCST of polyphosphoesters.
Chem Commun (Camb)
March 2019
Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
The complex phase separation process of thermoresponsive polyphosphoesters (PPEs) with an identical side-group structure but different copolymer compositions is characterized by electron paramagnetic resonance (EPR) spectroscopy. In water these PPEs show LCST-type behavior, in which water-rich and slightly polymer-enriched nanoscopic regions are highly water swollen, and nanoscopic inhomogeneities with the lowest polarity contrast measured so far develop 8 °C below the macroscopic cloud point.
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