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ABA Type Amphiphiles with Poly(2-Benzhydryl-2-Oxazine) Moieties: Synthesis, Characterization and Inverse Thermogelation

preprint
submitted on 31.03.2021, 18:02 and posted on 31.03.2021, 18:02 by Lukas Hahn, Larissa Keßler, Lando Polzin, Lars Fritze, Holger Helten, Robert Luxenhofer
Thermoresponsive polymers are frequently discussed for various applications. Here, we introduce a novel amphiphilic triblock copolymer, which undergoes inverse thermogelation, i.e. is forms a physical gel upon cooling. The polymers comprises poly(2-benzhydryl-2-oxazine) as the hydrophobic building block, a polymer which has not been reported to date. The physical gels are surprisingly strong with a storage modulus of 22 kPa at 25 wt.% in water. In addition, relatively high yield and flow points were determined by rheology.

Funding

Deutsche Forschungsgemeinschaft

History

Email Address of Submitting Author

robert.luxenhofer@helsinki.fi

Institution

University of Helsinki

Country

Finland

ORCID For Submitting Author

0000-0001-5567-7404

Declaration of Conflict of Interest

No conflict of interest declared

Version Notes

First version submitted for peer review

Exports