期刊
POLYMERS
卷 12, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/polym12030698
关键词
polyoxazolines; cross-linking polymers; thermo-induced gelation; steady-state flow rheology; turbidimetry
资金
- Russian Science Foundation [17-73-20318]
- Russian Science Foundation [17-73-20318] Funding Source: Russian Science Foundation
Water-soluble, partially cross-linked poly-2-isopropyl-2-oxazoline combining the properties of chemical and physical gels was synthesized by a two-step procedure. Thermally induced sol-gel transition in its aqueous solution was studied by rheology, light scattering, and turbidimetry. It was demonstrated that the synthesized product is bimodal; it consists of linear and cross-linked components. The cross-linked components are responsible for the gelation, while the linear ones abate the viscosity growth. Heating the solution above the phase transition temperature leads to the self-assembly of the particles into a physical gel. The combination of chemical and physical cross-linking was found to be a prospective route for thermosensitive gel development.
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