Thermodynamic analysis of hydrogel swelling in aqueous sodium chloride solutions

Tanveer, Sheik; Chen, Chau-Chyun

doi:10.1016/j.molliq.2021.118421

Thermodynamic analysis of hydrogel swelling in aqueous sodium chloride solutions

Journal Article · Thu Dec 30 00:00:00 EST 2021 · Journal of Molecular Liquids

DOI:https://doi.org/10.1016/j.molliq.2021.118421· OSTI ID:1977459

Tanveer, Sheik ^[1]; Chen, Chau-Chyun ^[2]

Texas Tech Univ., Lubbock, TX (United States); OSTI
Texas Tech Univ., Lubbock, TX (United States)

Here, a comprehensive thermodynamic model is presented for swelling and salt partitioning of poly (n-isopropyl acrylamide) hydrogels in aqueous sodium chloride (NaCl) solutions at 298 K. Together with a Helmholtz energy expression for network elastic energy, a modified electrolyte Nonradom Two-Liquid activity coefficient model is used to represent both the long-range electrostatic interactions and the short-range van der Waals interactions present in the gel phase. The model parameters include one network parameter per hydrogel system plus two binary parameters per interaction pair in the polymer–solvent-salt systems. With semiquantitave agreement with experimental data for both hydrogel swelling and salt partitioning up to salt saturation, the analysis suggests the ion hydration between NaCl and water is the root cause for hydrogel deswelling in aqueous NaCl solution at high NaCl concentrations, i.e., NaCl weight fraction >0.03. On the other hand, the strong repulsive interaction between NaCl and hydrogel polymer is the dominant factor for salt partitioning.

View Accepted Manuscript (DOE)

Research Organization:: American Institute of Chemical Engineers (AIChE), New York, NY (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: EE0007888

OSTI ID:: 1977459

Alternate ID(s):: OSTI ID: 1838557

Journal Information:: Journal of Molecular Liquids, Journal Name: Journal of Molecular Liquids Vol. 348; ISSN 0167-7322

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (20)

Generalized electrolyte-NRTL model for mixed-solvent electrolyte systems Chen, Chau-Chyun; Song, Yuhua AIChE Journal, Vol. 50, Issue 8 https://doi.org/10.1002/aic.10151	journal	January 2004
Temperature dependence of interaction parameters in electrolyte NRTL model Hossain, Nazir; Bhattacharia, Sanjoy K.; Chen, Chau-Chyun AIChE Journal, Vol. 62, Issue 4 https://doi.org/10.1002/aic.15080	journal	November 2015
Local composition model for excess Gibbs energy of electrolyte systems. Part I: Single solvent, single completely dissociated electrolyte systems Chen, Chau-Chyun; Britt, H. I.; Boston, J. F. AIChE Journal, Vol. 28, Issue 4 https://doi.org/10.1002/aic.690280410	journal	July 1982
A local composition model for the excess Gibbs energy of aqueous electrolyte systems Chen, Chau-Chyun; Evans, L. B. AIChE Journal, Vol. 32, Issue 3 https://doi.org/10.1002/aic.690320311	journal	March 1986
Simple presentation of network theory of rubber, with a discussion of other theories James, Hubert M.; Guth, Eugene Journal of Polymer Science, Vol. 4, Issue 2 https://doi.org/10.1002/pol.1949.120040206	journal	April 1949
A segment-based local composition model for the gibbs energy of polymer solutions Chen, Chau-Chyun Fluid Phase Equilibria, Vol. 83 https://doi.org/10.1016/0378-3812(93)87033-W	journal	February 1993
Thermodynamics of phase equilibrium for systems containing gels Maurer, G.; Prausnitz, J. M. Fluid Phase Equilibria, Vol. 115, Issue 1-2 https://doi.org/10.1016/0378-3812(95)02829-3	journal	February 1996
Environment-sensitive hydrogels for drug delivery Qiu, Yong; Park, Kinam Advanced Drug Delivery Reviews, Vol. 53, Issue 3 https://doi.org/10.1016/S0169-409X(01)00203-4	journal	December 2001
Modeling swelling behavior of hydrogels in aqueous organic solvents Islam, Md Rashedul; Tanveer, Sheik; Chen, Chau-Chyun Chemical Engineering Science, Vol. 242 https://doi.org/10.1016/j.ces.2021.116744	journal	October 2021
Swelling of n-isopropyl acrylamide hydrogels in water and aqueous solutions of ethanol and acetone Hüther, Andreas; Xu, Xiaoping; Maurer, Gerd Fluid Phase Equilibria, Vol. 219, Issue 2 https://doi.org/10.1016/j.fluid.2003.08.002	journal	May 2004
Swelling of N-isopropyl acrylamide hydrogels in aqueous solutions of sodium chloride Hüther, Andreas; Xu, Xiaoping; Maurer, Gerd Fluid Phase Equilibria, Vol. 240, Issue 2 https://doi.org/10.1016/j.fluid.2005.12.025	journal	February 2006
Thermodynamic representation of the NaCl+Na2SO4+H2O system with electrolyte NRTL model Yan, Yizhuan; Chen, Chau-Chyun Fluid Phase Equilibria, Vol. 306, Issue 2 https://doi.org/10.1016/j.fluid.2011.03.023	journal	July 2011
Symmetric Electrolyte Nonrandom Two-Liquid Activity Coefficient Model Song, Yuhua; Chen, Chau-Chyun Industrial & Engineering Chemistry Research, Vol. 48, Issue 16 https://doi.org/10.1021/ie9004578	journal	August 2009
Effects of Salt on the Lower Critical Solution Temperature of Poly ( N -Isopropylacrylamide) Du, Hongbo; Wickramasinghe, Ranil; Qian, Xianghong The Journal of Physical Chemistry B, Vol. 114, Issue 49 https://doi.org/10.1021/jp105652c	journal	December 2010
Sodium chloride-induced phase transition in nonionic poly(N-isopropylacrylamide) gel Park, Tae Gwan; Hoffman, Allan S. Macromolecules, Vol. 26, Issue 19 https://doi.org/10.1021/ma00071a010	journal	September 1993
Swelling equilibria for positively ionized polyacrylamide hydrogels Hooper, Herbert H.; Baker, John P.; Blanch, Harvey W. Macromolecules, Vol. 23, Issue 4 https://doi.org/10.1021/ma00206a031	journal	February 1990
Modeling Poly( N -isopropylacrylamide) Hydrogels in Water/Alcohol Mixtures with PC-SAFT Arndt, Markus C.; Sadowski, Gabriele Macromolecules, Vol. 45, Issue 16 https://doi.org/10.1021/ma300683k	journal	July 2012
Poly(vinyl alcohol) hydrogels as soft contact lens material Hyon, Suong-Hyu; Cha, Won-Ill; Ikada, Yoshito Journal of Biomaterials Science, Polymer Edition, Vol. 5, Issue 5 https://doi.org/10.1163/156856294X00103	journal	January 1994
PNIPAM-MAPOSS Hybrid Hydrogels with Excellent Swelling Behavior and Enhanced Mechanical Performance: Preparation and Drug Release of 5-Fluorouracil Li, Peihong; Hou, Xiaoman; Qu, Lijie Polymers, Vol. 10, Issue 2 https://doi.org/10.3390/polym10020137	journal	January 2018
Thermo-Responsive Poly(N-Isopropylacrylamide)-Cellulose Nanocrystals Hybrid Hydrogels for Wound Dressing Zubik, Katarzyna; Singhsa, Pratyawadee; Wang, Yinan Polymers, Vol. 9, Issue 12 https://doi.org/10.3390/polym9040119	journal	March 2017

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