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Related Concept Videos

Ionic Crystal Structures02:42

Ionic Crystal Structures

16.9K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
16.9K
Ionic Radii03:10

Ionic Radii

33.3K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
33.3K
Ionic Bonds00:42

Ionic Bonds

129.2K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
129.2K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

48.8K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
48.8K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

19.9K
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...
19.9K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.0K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
68.0K

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Updated: Jan 21, 2026

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
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Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

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Electroresponsive Ionic Liquid Crystal Elastomers.

Chenrun Feng1, Chathuranga P Hemantha Rajapaksha2, Jesus M Cedillo3

  • 1Chemical Physics Interdisciplinary Program, Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA.

Macromolecular Rapid Communications
|July 27, 2019
PubMed
Summary
This summary is machine-generated.

Ionic liquid crystal elastomers (iLCEs) are a new material class that bends with low voltage. These iLCEs show potential for advanced soft robotics and sensing applications.

Keywords:
electroactiveionic liquidsliquid crystal elastomerssoft robotics

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

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Soft Robotics

Background:

  • Ionic liquid crystal elastomers (iLCEs) are a novel class of active materials.
  • Existing electroactive polymers have limitations in performance and responsiveness.

Purpose of the Study:

  • To describe the preparation and properties of iLCEs.
  • To demonstrate the electric bending actuation of iLCEs.
  • To explore the potential of iLCEs in various applications.

Main Methods:

  • Preparation and characterization of iLCEs.
  • Testing of electric bending actuation under AC and DC voltages.
  • Investigation of material properties including alignment and responsiveness.

Main Results:

  • iLCEs can be actuated by low voltages (<1 V).
  • Bending strains are comparable to established ionic electroactive polymers.
  • Novel features include alignment-enhanced performance, preprogrammed actuation, and dual thermal/electric actuation.

Conclusions:

  • iLCEs represent a promising new material for actuation.
  • Their multiresponsive properties offer significant potential for soft robotics, sensing, and biomedical fields.
  • Further research into iLCEs could lead to advanced multiresponsive actuators.