Partitioning of mobile ions between ion exchange polymers and aqueous salt solutions: importance of counter-ion condensation
Literature Information
Jovan Kamcev, Michele Galizia, Francesco M. Benedetti, Eui-Soung Jang, Donald R. Paul, Benny D. Freeman, Gerald S. Manning
Equilibrium partitioning of ions between a membrane and a contiguous external solution strongly influences transport properties of polymeric membranes used for water purification and energy generation applications. This study presents a theoretical framework to quantitatively predict ion sorption from aqueous electrolytes (e.g., NaCl, MgCl2) into charged (i.e., ion exchange) polymers. The model was compared with experimental NaCl, MgCl2, and CaCl2 sorption data in commercial cation and anion exchange membranes. Ion sorption in charged polymers was modeled using a thermodynamic approach based on Donnan theory coupled with Manning's counter-ion condensation theory to describe non-ideal behavior of ions in the membrane. Ion activity coefficients in solution were calculated using the Pitzer model. The resulting model, with no adjustable parameters, provides remarkably good agreement with experimental values of membrane mobile salt concentration. The generality of the model was further demonstrated using literature data for ion sorption of various electrolytes in charged polymers, including HCl sorption in Nafion.
Related Literature
A controlled and versatile NCA polymerization method for the synthesis of polypeptides‡
Inmaculada Conejos-Sánchez, Aroa Duro-Castano, Alexander Birke, Matthias Barz, María J. Vicent
DOI: 10.1039/C3PY00347G
Fluorescence turn-on detection of DNA based on the aggregation-induced emission of conjugated poly(pyridinium salt)s
Jingfen Sun, Yan Lu, Lei Wang, Dandan Cheng, Yujiao Sun, Xianshun Zeng
DOI: 10.1039/C3PY00350G
Synthesis of new n-type isoindigo copolymers
François Grenier, Jean-Rémi Pouliot, Hsin-Rong Tseng, Alan J. Heeger, Mario Leclerc
DOI: 10.1039/C2PY20986A
Nano-TiO2 promoted CaO-based high-temperature CO2 sorbent: influence of crystal level properties on the CO2 sorption efficiency
Sanat Chandra Maiti, Chinmay Ghoroi
DOI: 10.1039/D0RE00124D
Biodegradable polyphosphazenes containing antibiotics: synthesis, characterization, and hydrolytic release behavior
Zhicheng Tian, Yufan Zhang, Xiao Liu, Chen Chen, Mark J. Guiltinan, Harry R. Allcock
DOI: 10.1039/C2PY21064A
Ultrafine silver nanoparticles with excellent antibacterial efficacy prepared by a handover of vesicle templating to micelle stabilization
Hang Lu, Li Yu, Qiuming Liu, Jianzhong Du
DOI: 10.1039/C3PY00393K
Synthesis of 1,4-polybutadiene-g-poly(ethylene oxide) via the macromonomer approach by ROMP
Dao Le, Véronique Montembault, Sagrario Pascual, Floraine Collette, Valérie Héroguez, Laurent Fontaine
DOI: 10.1039/C3PY21103G
Organoselenium compounds: development of a universal “living” free radical polymerization mediator
Jindong Zeng, Jian Zhu, Xiangqiang Pan, Zhengbiao Zhang, Nianchen Zhou, Zhenping Cheng, Wei Zhang, Xiulin Zhu
DOI: 10.1039/C3PY00285C
Living radical polymerization of vinyl acetate and methyl acrylate mediated by Co(Salen*) complexes
Chei-Ming Liao, Ching-Chun Hsu, Fu-Sheng Wang, Bradford B. Wayland, Chi-How Peng
DOI: 10.1039/C3PY00282A
You might also like
What is 1-(2,4,6-Trifluorophenyl)ethanol (CAS: 1250113-83-7)?
1-(2,4,6-Trifluorophenyl)ethanol is an organic compound with the CAS number 1250...
Is 1-(2,4-Dimethoxybenzyl)-4-(hydroxymethyl)-2-pyrrolidinone (CAS: 919111-34-5) safe?
1-(2,4-Dimethoxybenzyl)-4-(hydroxymethyl)-2-pyrrolidinone (CAS: 919111-34-5) is ...
What are the physical and chemical properties of (7S,15R)-6β,15-Diacetoxy-7α,20-epoxy-7-hydroxykaura-2,16-dien-1-one (CAS: 51419-51-3)?
(7S,15R)-6β,15-Diacetoxy-7α,20-epoxy-7-hydroxykaura-2,16-dien-1-one is a crystal...
What regulatory guidelines apply to rac-ethyl (1r,4r)-4-hydroxycyclohexane-1-carboxylate, trans (CAS: 3618-04-0)?
The compound rac-ethyl (1r,4r)-4-hydroxycyclohexane-1-carboxylate, trans (CAS: 3...
What is the market or research trend for 2-(2,4-Difluorophenoxy)-3-nitropyridine (CAS: 175135-62-3)?
The market for 2-(2,4-Difluorophenoxy)-3-nitropyridine (CAS: 175135-62-3) is cur...
What are the main uses of 6-Diazo-5-oxo-L-norleucine (CAS: 157-03-9)?
The main uses of 6-Diazo-5-oxo-L-norleucine (CAS: 157-03-9) include research in ...
What precautions should be taken when handling 2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) (CAS: 173308-19-5)?
When handling 2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) (CAS: 173308-19-5), i...
How is 5-Methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS: 178488-37-4) typically synthesized?
5-Methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS: 178488-37-4) can be synthesi...
Are there alternatives to 2,4,6-Trihydroxyisophthalaldehyde (CAS: 4396-13-8) in synthesis?
There are alternative reagents that can be used in the synthesis of 2,4,6-Trihyd...
What is (2Z)-3-(5-Fluoro-1H-indol-3-yl)-2-sulfanylacrylic acid (CAS: 179461-52-0)?
(2Z)-3-(5-Fluoro-1H-indol-3-yl)-2-sulfanylacrylic acid is a chemical compound wi...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














