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Title: Properties of Polyvinylpyrrolidone in a Deep Eutectic Solvent

Abstract

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.

Authors:
 [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
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Hebrew Univ. of Jerusalem (Israel)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); United States-Israel Binational Science Foundation (BSF); Leverhulme Trust (United Kingdom); Israel Academy of Sciences and Humanities
OSTI Identifier:
1424493
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory
Additional Journal Information:
Journal Volume: 120; Journal Issue: 19; Journal ID: ISSN 1089-5639
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Sapir, Liel, Stanley, Christopher B., and Harries, Daniel. Properties of Polyvinylpyrrolidone in a Deep Eutectic Solvent. United States: N. p., 2016. Web. doi:10.1021/acs.jpca.5b11927.
Sapir, Liel, Stanley, Christopher B., & Harries, Daniel. Properties of Polyvinylpyrrolidone in a Deep Eutectic Solvent. United States. https://doi.org/10.1021/acs.jpca.5b11927
Sapir, Liel, Stanley, Christopher B., and Harries, Daniel. Thu . "Properties of Polyvinylpyrrolidone in a Deep Eutectic Solvent". United States. https://doi.org/10.1021/acs.jpca.5b11927. https://www.osti.gov/servlets/purl/1424493.
@article{osti_1424493,
title = {Properties of Polyvinylpyrrolidone in a Deep Eutectic Solvent},
author = {Sapir, Liel and Stanley, Christopher B. and Harries, Daniel},
abstractNote = {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.},
doi = {10.1021/acs.jpca.5b11927},
journal = {Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory},
number = 19,
volume = 120,
place = {United States},
year = {Thu Mar 10 00:00:00 EST 2016},
month = {Thu Mar 10 00:00:00 EST 2016}
}

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