Properties of Polyvinylpyrrolidone in a Deep Eutectic Solvent
Journal Article
·
· Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory
- Hebrew Univ. of Jerusalem (Israel). Inst. of Chemistry. The Fritz Haber Research Center
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biology and Soft Matter Division
Deep eutectic solvents (DES) are mixtures of two or more components with high melting temperatures, which form a liquid at room temperature. These DES hold great promise as green solvents for chemical processes, as they are inexpensive and environmentally friendly. Specifically, they present a unique solvating environment to polymers that is different from water. In this paper, we use small angle neutron scattering to study the polymer properties of the common, water-soluble, polyvinylpyrrolidone (PVP) in the prominent DES formed by a 1:2 molar mixture of choline chloride and urea. We find that the polymer adopts a slightly different structure in DES than in water, so that at higher concentrations the polymer favors a more expanded conformation compared to the same concentration in water. Yet, the osmotic pressure of PVP solutions in DES is very similar to that in water, indicating that both solvents are of comparable quality and that the DES components interact favorably with PVP. Finally, the osmotic pressure measurements within this novel class of promising solvents should be of value toward future technological applications as well as for osmotic stress experiments in nonaqueous environments.
- Research Organization:
- Hebrew Univ. of Jerusalem (Israel); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- Israel Academy of Sciences and Humanities; Leverhulme Trust (United Kingdom); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); United States-Israel Binational Science Foundation (BSF)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1424493
- Journal Information:
- Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory, Journal Name: Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory Journal Issue: 19 Vol. 120; ISSN 1089-5639
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dual modulation of the anion-driven thermodynamic properties of aqueous choline halide-based deep eutectic solvents
Thermodynamic Framework for Water in Deep Eutectic Solvents and Ionic Liquids
Measuring Solvation Interactions of Deep Eutectic Solvents Formed by Metal Chlorides and an Imidazolium Salt by Inverse Gas Chromatography
Journal Article
·
Sun Aug 24 20:00:00 EDT 2025
· Journal of Chemical Physics
·
OSTI ID:3026699
Thermodynamic Framework for Water in Deep Eutectic Solvents and Ionic Liquids
Journal Article
·
Mon Dec 15 19:00:00 EST 2025
· ChemPhysChem
·
OSTI ID:3026696
Measuring Solvation Interactions of Deep Eutectic Solvents Formed by Metal Chlorides and an Imidazolium Salt by Inverse Gas Chromatography
Journal Article
·
Mon Aug 04 20:00:00 EDT 2025
· Journal of Separation Science
·
OSTI ID:2586717