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Polymers 2010, 2(3), 188-199; doi:10.3390/polym2030188
Article

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

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Received: 13 June 2010; in revised form: 3 August 2010 / Accepted: 6 August 2010 / Published: 10 August 2010
(This article belongs to the Special Issue Novel Stimuli-Responsive (co)Polymers)
Download PDF [260 KB, uploaded 10 August 2010]
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
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Lambermont-Thijs, H.M.L.; Kuringen, H.P.C.; Put, J.P.W.; 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.

AMA Style

Lambermont-Thijs HML, Kuringen HPC, Put JPW, 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.

Chicago/Turabian Style

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


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