Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Ion Exchange01:17

Ion Exchange

1.5K
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
1.5K
Ionic Association01:28

Ionic Association

166
The ionic association is the association of oppositely charged ions in an electrolyte solution to form ion pairs. Bjerrum defined ion pairs as two oppositely charged ions whose electrostatic attraction exceeds the thermal energy of the system, typically expressed as 2kT. Electrostatic attraction depends on ionic charge, separation distance, and the dielectric constant of the medium. Thermal energy, represented by kT, reflects the tendency of ions to move independently due to molecular motion.
166
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

2.7K
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
2.7K
Theory of Strong Electrolytes01:23

Theory of Strong Electrolytes

57
The interionic forces of the strong electrolytes depend on the solvent's dielectric constant, which is the ability of a solvent to store electrical energy, based on its polarizability. and the solution's concentration. In high-dielectric solvents and in dilute solutions, weak electrostatic forces keep ions apart. However, in low-dielectric solvents or concentrated solutions, stronger interionic forces may cause ions to pair up as ionic doublets despite being fully ionized. The theory of strong...
57
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.7K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.7K
Ionic Strength: Overview01:12

Ionic Strength: Overview

3.5K
The ionic strength of a solution is a quantitative way of expressing the total electrolyte concentration of a solution. This concept was first introduced in 1921 by two American physical chemists, Gilbert N. Lewis and Merle Randall, while describing the activity coefficient of strong electrolytes. During the calculation of ionic strength (I or μ), all the cations and anions are considered. However, the concentration (c) of an ion with a greater charge number (z) has a greater contribution...
3.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Mobile Carrier Structure for Facilitated CO<sub>2</sub> Transport in Mixed Ionic Liquid Membrane Composed of 1-Ethyl-3-Methylimidazolium Acetate and Diamine-Functionalized Ionic Liquids.

ChemSusChem·2026
Same author

Effects of Isothermal Treatment on A<sub>g</sub>ZIF-62: Implications on Porosity, Separations, and Grain Boundary Defect Removal.

Small science·2026
Same author

l-Leucine-Based Layered Coordination Polymer Supports for Immobilizing Basic Salts to Yield Solid CO<sub>2</sub> Adsorbents Resistant to Moisture and Oxidation.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

A Commentary on "Evidence-Based Clinical Practice Guidelines for Patients With Lumbar Disc Herniation With Radiculopathy in South Korea".

Neurospine·2025
Same author

A Systematic Review of Treatment Guidelines for Lumbar Disc Herniation.

Neurospine·2025
Same author

Molecular Simulation of CO<sub>2</sub>/CH<sub>4</sub> Transport and Separation in Polystyrene-<i>block</i>-poly(ethylene oxide)/Ionic Liquid (IL) Membranes: Insights into Nanoconfined IL Effects.

ACS applied materials & interfaces·2025
Same journal

Reprocessable Disulfide-Based Vitrimers with Adhesive Properties.

Macromolecular rapid communications·2026
Same journal

Micro- and Nanopatterning of Highly Conductive PEDOT Thin Films.

Macromolecular rapid communications·2026
Same journal

From Molecular Structure to Macroscopic Performance: Insights into Polycarbosilane Curing.

Macromolecular rapid communications·2026
Same journal

High-Yield Synthesis of Molecular Bottlebrushes With Block Copolymer Side Chains by the Copper Superoxido Complex Enabled ATRP via a Grafting-From Approach.

Macromolecular rapid communications·2026
Same journal

Chemically and Mechanically Recyclable Polyolefins Incorporating Covalent Adaptable Networks.

Macromolecular rapid communications·2026
Same journal

Designing Thermally Stable DNA Hydrogels via Entropically-Driven Acridine Intercalation.

Macromolecular rapid communications·2026
See all related articles

Related Experiment Video

Updated: Mar 21, 2026

Thermal Scanning Conductometry TSC as a General Method for Studying and Controlling the Phase Behavior of Conductive Physical Gels
10:01

Thermal Scanning Conductometry TSC as a General Method for Studying and Controlling the Phase Behavior of Conductive Physical Gels

Published on: January 23, 2018

8.1K

Imidazolium-Based Poly(ionic liquid)/Ionic Liquid Ion-Gels with High Ionic Conductivity Prepared from a Curable

Matthew G Cowan1,2, Alexander M Lopez2, Miyuki Masuda2

  • 1Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO, 80309, USA.

Macromolecular Rapid Communications
|May 7, 2016
PubMed
Summary
This summary is machine-generated.

New ion-gel membranes using ionic liquids (ILs) show high ionic conductivity. These materials offer excellent performance at various temperatures, making them suitable for advanced applications.

Keywords:
curable poly(ionic liquids)ion-gelsionic conductivityprotic ionic liquids

More Related Videos

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.8K
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.6K

Related Experiment Videos

Last Updated: Mar 21, 2026

Thermal Scanning Conductometry TSC as a General Method for Studying and Controlling the Phase Behavior of Conductive Physical Gels
10:01

Thermal Scanning Conductometry TSC as a General Method for Studying and Controlling the Phase Behavior of Conductive Physical Gels

Published on: January 23, 2018

8.1K
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.8K
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
11:04

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

13.6K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Polymer Chemistry

Background:

  • Ionic liquids (ILs) are salts that are liquid at room temperature and possess unique properties.
  • Ion-gel membranes combine the characteristics of ionic liquids and polymer matrices.
  • Developing stable and conductive ion-gel membranes is crucial for electrochemical applications.

Purpose of the Study:

  • To prepare and characterize novel ionic liquid-based ion-gel membranes.
  • To evaluate the ionic conductivity of these membranes across a range of temperatures.
  • To investigate the effect of free ionic liquid content on membrane performance.

Main Methods:

  • Preparation of cross-linked, free-standing ion-gel membranes from a poly(IL)-based platform.
  • Incorporation of various free ionic liquids, including [EMIM][TFSI], [EMIM][FSI], [C4 IMH][TFSI], and [EAN][NO3].
  • Measurement of ionic conductivity at ambient and elevated temperatures (25-110 °C).

Main Results:

  • Membranes exhibited low water content (<1 wt%), except for [EAN][NO3] (≈20 wt%).
  • Increasing free IL content to 80 wt% resulted in ionic conductivity ≥10⁻² S cm⁻¹ at 25 °C and ≈10⁻¹ S cm⁻¹ at 110 °C.
  • Ion-gels with 70 wt% protic ILs ([C4 IMH][TFSI], [EMIM][FSI]) showed conductivity of ≈10⁻³ to 10⁻² S cm⁻¹ from 25-110 °C.

Conclusions:

  • The developed ionic liquid-based ion-gel membranes demonstrate promising ionic conductivity.
  • High free IL content is key to achieving high conductivity at elevated temperatures.
  • These materials are suitable for applications requiring efficient ion transport over a wide temperature range.