Behavior of PNIPAM Microgels in Different Organic Solvents
Open Access
- 5 December 2022
- Vol. 27 (23), 8549
- https://doi.org/10.3390/molecules27238549
Abstract
In this research, we studied, in detail, the behavior of common PNIPAM microgels, obtained through surfactant-free precipitation polymerization, in a number of organic solvents. We showed that many of the selected solvents serve as good solvents for the PNIPAM microgels and that the size and architecture of the microgels depend on the solvent chosen. Expanding the range of solvents used for PNIPAM microgel incubation greatly enhances the possible routes for microparticle functionalization and modification, as well as the encapsulation of water-insoluble species. In this demonstration, we successfully encapsulated water-insoluble Sudan III dye in PNIPAM microgels and prepared the aqueous dispersions of such composite-colored microparticles.Keywords
Funding Information
- Ministry of Science and Higher Education of the Russian Federation (075-15-2020-794)
This publication has 54 references indexed in Scilit:
- Color-Tunable Etalons Assembled from Poly (N-Isopropylacrylamide) Based MicrogelsPolymers, 2012
- PNIPAM microgels for biomedical applications: from dispersed particles to 3D assembliesSoft Matter, 2011
- Optically pH and H2O2 Dual Responsive Composite Colloids through the Directed Assembly of Organic Dyes on Responsive MicrogelsChemistry of Materials, 2009
- Loading quantum dots into thermo-responsive microgels by reversible transfer from organic solvents to waterJournal of Materials Chemistry, 2008
- Engineering Glucose Swelling Responses in Poly(N-isopropylacrylamide)-Based MicrogelsMacromolecules, 2007
- Hydrogel Microparticles as Dynamically Tunable MicrolensesJournal of the American Chemical Society, 2004
- Solubility parameter of an N-isopropylacrylamide gelMacromolecules, 1992
- CONTIN: A general purpose constrained regularization program for inverting noisy linear algebraic and integral equationsComputer Physics Communications, 1982
- Solubility parametersChemical Reviews, 1975
- Interaction between Rubber and Liquids. IV. Factors Governing the Absorption of Oil by RubberRubber Chemistry and Technology, 1943