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Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES

In this study, the Deep Eutectic Solvent (DES) is prepared based on glycerol and polyethylene glycol 600 (PEG) as hydrogen bond donor and choline chloride (ChCl) as hydrogen bond acceptor. The glycerol based DESs were formed with ratio of 1:2, 1:3, 1:4 and 1:5 whereas three-component DESs of ChCl, P...

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Main Authors: Singh, Amarpreet, Walvekar, Rashmi, Khalid, Mohammad *, Wong, Wai Yin, Gupta, T.C.S.M
Format: Article
Published: Elsevier 2018
Subjects:
QC Physics
QD Chemistry
Online Access:http://eprints.sunway.edu.my/968/
http://doi.org/10.1016/j.molliq.2017.10.030
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spelling my.sunway.eprints.9682019-04-25T07:46:46Z http://eprints.sunway.edu.my/968/ Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES Singh, Amarpreet Walvekar, Rashmi Khalid, Mohammad * Wong, Wai Yin Gupta, T.C.S.M QC Physics QD Chemistry In this study, the Deep Eutectic Solvent (DES) is prepared based on glycerol and polyethylene glycol 600 (PEG) as hydrogen bond donor and choline chloride (ChCl) as hydrogen bond acceptor. The glycerol based DESs were formed with ratio of 1:2, 1:3, 1:4 and 1:5 whereas three-component DESs of ChCl, PEG and glycerol were synthesized with ratio 1:3:2, 1:4:2 and 1:5:2. The DESs were subjected to DSC, Karl Fishcer, thermal conductivity, viscosity and density testing. The melting temperature (Tm) for PEG based DESs were found to in the region of 18 °C. The moisture content in DESs were identified through Karl Fishcer testing was found to be < 1% which is desired when synthesizing a DES. The thermal conductivity of glycerol based DESs decreases with respect to pure glycerol whereas for PEG based DESs shows positive enhancement of thermal conductivity at temperatures below 60 °C. The viscosity of glycerol DESs decreases with increasing temperature and the value of PEG DESs' viscosities was found to be higher than the pure PEG. All the DES samples have linear decrease across a temperature range with highest density achieved at 1.2155 g/cm3 with temperature of 25 °C for molar ratio of ChCl to glycerol of 1:4 (DES 4). Elsevier 2018 Article PeerReviewed Singh, Amarpreet and Walvekar, Rashmi and Khalid, Mohammad * and Wong, Wai Yin and Gupta, T.C.S.M (2018) Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES. Journal of Molecular Liquids, 252. pp. 439-444. ISSN 0167-7322 http://doi.org/10.1016/j.molliq.2017.10.030 doi:10.1016/j.molliq.2017.10.030
institution Sunway University
building Sunway Campus Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Sunway University
content_source Sunway Institutional Repository
url_provider http://eprints.sunway.edu.my/
topic QC Physics
QD Chemistry
spellingShingle QC Physics
QD Chemistry
Singh, Amarpreet
Walvekar, Rashmi
Khalid, Mohammad *
Wong, Wai Yin
Gupta, T.C.S.M
Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES
description In this study, the Deep Eutectic Solvent (DES) is prepared based on glycerol and polyethylene glycol 600 (PEG) as hydrogen bond donor and choline chloride (ChCl) as hydrogen bond acceptor. The glycerol based DESs were formed with ratio of 1:2, 1:3, 1:4 and 1:5 whereas three-component DESs of ChCl, PEG and glycerol were synthesized with ratio 1:3:2, 1:4:2 and 1:5:2. The DESs were subjected to DSC, Karl Fishcer, thermal conductivity, viscosity and density testing. The melting temperature (Tm) for PEG based DESs were found to in the region of 18 °C. The moisture content in DESs were identified through Karl Fishcer testing was found to be < 1% which is desired when synthesizing a DES. The thermal conductivity of glycerol based DESs decreases with respect to pure glycerol whereas for PEG based DESs shows positive enhancement of thermal conductivity at temperatures below 60 °C. The viscosity of glycerol DESs decreases with increasing temperature and the value of PEG DESs' viscosities was found to be higher than the pure PEG. All the DES samples have linear decrease across a temperature range with highest density achieved at 1.2155 g/cm3 with temperature of 25 °C for molar ratio of ChCl to glycerol of 1:4 (DES 4).
format Article
author Singh, Amarpreet
Walvekar, Rashmi
Khalid, Mohammad *
Wong, Wai Yin
Gupta, T.C.S.M
author_facet Singh, Amarpreet
Walvekar, Rashmi
Khalid, Mohammad *
Wong, Wai Yin
Gupta, T.C.S.M
author_sort Singh, Amarpreet
title Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES
title_short Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES
title_full Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES
title_fullStr Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES
title_full_unstemmed Thermophysical properties of glycerol and polyethylene glycol (PEG 600) based DES
title_sort thermophysical properties of glycerol and polyethylene glycol (peg 600) based des
publisher Elsevier
publishDate 2018
url http://eprints.sunway.edu.my/968/
http://doi.org/10.1016/j.molliq.2017.10.030
_version_ 1644324464868982784
score 13.211869

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