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Properties of Polyvinylpyrrolidone in a Deep Eutectic Solvent

Journal Article · · Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory
 [1];  [2];  [1]
  1. Hebrew Univ. of Jerusalem (Israel). Inst. of Chemistry. The Fritz Haber Research Center
  2. 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

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Cited By (7)

Use of Deep Eutectic Solvents in Polymer Chemistry–A Review journal November 2019
Polymer Science and Engineering Using Deep Eutectic Solvents journal May 2019
Transport, Thermodynamic, and Thermophysical Properties of Aqueous Mixtures of Poly (Ethylene Glycol): Experimental and Modeling journal August 2019
Counterion binding alters surfactant self-assembly in deep eutectic solvents journal January 2018
Nanostructure of the deep eutectic solvent/platinum electrode interface as a function of potential and water content journal January 2019
Bayesian determination of the effect of a deep eutectic solvent on the structure of lipid monolayers journal January 2019
Bayesian determination of the effect of a deep eutectic solvent on the structure of lipid monolayers text January 2018

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