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Article

Temperature Induced Solubility Transitions of Various Poly(2-oxazoline)s in Ethanol-Water Solvent Mixtures

by
Hanneke M. L. Lambermont-Thijs
1,
Huub P. C. van Kuringen
1,
Jeroen P. W. van der Put
1,
Ulrich S. Schubert
1,2,3,* and
Richard Hoogenboom
1,4,*
1
Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
2
Laboratory of Organic and Macromolecular Chemistry, Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany
3
Dutch Polymer Institute, John F. Kennedylaan 2, 5612 AB Eindhoven, The Netherlands
4
Supramolecular Chemistry group, Department of Organic Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
*
Authors to whom correspondence should be addressed.
Polymers 2010, 2(3), 188-199; https://doi.org/10.3390/polym2030188
Submission received: 13 June 2010 / Revised: 3 August 2010 / Accepted: 6 August 2010 / Published: 10 August 2010
(This article belongs to the Special Issue Novel Stimuli-Responsive (co)Polymers)
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Abstract

The solution behavior of a series of poly(2-oxazoline)s with different side chains, namely methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, pentyl, hexyl, heptyl, octyl, nonyl, phenyl and benzyl, are reported in ethanol-water solvent mixtures based on turbidimetry investigations. The LCST transitions of poly(2-oxazoline)s with propyl side chains and the UCST transitions of the poly(2-oxazoline)s with more hydrophobic side chains are discussed in relation to the ethanol-water solvent composition and structure. The poly(2-alkyl-2-oxazoline)s with side chains longer than propyl only dissolved during the first heating run, which is discussed and correlated to the melting transition of the polymers.
Keywords: poly(2-oxazoline); solubility transitions; ethanol-water; LCST; UCST; thermoresponsiveness poly(2-oxazoline); solubility transitions; ethanol-water; LCST; UCST; thermoresponsiveness
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MDPI and ACS Style

Lambermont-Thijs, H.M.L.; Kuringen, H.P.C.v.; Put, J.P.W.v.d.; Schubert, U.S.; Hoogenboom, R. Temperature Induced Solubility Transitions of Various Poly(2-oxazoline)s in Ethanol-Water Solvent Mixtures. Polymers 2010, 2, 188-199. https://doi.org/10.3390/polym2030188

AMA Style

Lambermont-Thijs HML, Kuringen HPCv, Put JPWvd, Schubert US, Hoogenboom R. Temperature Induced Solubility Transitions of Various Poly(2-oxazoline)s in Ethanol-Water Solvent Mixtures. Polymers. 2010; 2(3):188-199. https://doi.org/10.3390/polym2030188

Chicago/Turabian Style

Lambermont-Thijs, Hanneke M. L., Huub P. C. van Kuringen, Jeroen P. W. van der Put, Ulrich S. Schubert, and Richard Hoogenboom. 2010. "Temperature Induced Solubility Transitions of Various Poly(2-oxazoline)s in Ethanol-Water Solvent Mixtures" Polymers 2, no. 3: 188-199. https://doi.org/10.3390/polym2030188

APA Style

Lambermont-Thijs, H. M. L., Kuringen, H. P. C. v., Put, J. P. W. v. d., Schubert, U. S., & Hoogenboom, R. (2010). Temperature Induced Solubility Transitions of Various Poly(2-oxazoline)s in Ethanol-Water Solvent Mixtures. Polymers, 2(3), 188-199. https://doi.org/10.3390/polym2030188

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