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Synthesis and Investigation of Thermo-Induced Gelation of Partially Cross-Linked Poly-2-isopropyl-2-oxazoline in Aqueous Media
- Source :
- Polymers, Volume 12, Issue 3, Polymers, Vol 12, Iss 3, p 698 (2020)
- Publication Year :
- 2020
- Publisher :
- MDPI AG, 2020.
-
Abstract
- 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<br />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.
- Subjects :
- steady-state flow rheology
Materials science
Aqueous solution
Polymers and Plastics
Aqueous medium
thermo-induced gelation
turbidimetry
General Chemistry
Oxazoline
cross-linking polymers
Article
Light scattering
lcsh:QD241-441
polyoxazolines
Viscosity
chemistry.chemical_compound
lcsh:Organic chemistry
chemistry
Rheology
Chemical engineering
Turbidimetry
Isopropyl
Subjects
Details
- ISSN :
- 20734360
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Polymers
- Accession number :
- edsair.doi.dedup.....2e67570219d9fce26960ee9f334154c5