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Related Concept Videos

Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

49.3K
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. 
49.3K
Ionic Radii03:10

Ionic Radii

33.6K
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...
33.6K
Ionic Bonds00:42

Ionic Bonds

131.3K
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...
131.3K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.2K
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...
20.2K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.3K
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.
68.3K
Ionic Crystal Structures02:42

Ionic Crystal Structures

17.2K
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...
17.2K

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Updated: Feb 7, 2026

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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Photocured Materials with Self-Healing Function through Ionic Interactions for Flexible Electronics.

Haoran Gong, Yanjing Gao, Shengling Jiang

    ACS Applied Materials & Interfaces
    |July 18, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a novel self-healing polymer using a new imidazolium-containing monomer. This material demonstrates excellent mechanical properties and efficient healing, even in flexible electronic devices.

    Keywords:
    flexible electronicsimidazoliumionic interactionsphotocuringself-healing

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    Area of Science:

    • Materials Science
    • Polymer Chemistry
    • Nanotechnology

    Background:

    • Photocurable materials with self-healing capabilities offer extended product lifespans and eco-friendly manufacturing.
    • These advanced materials are crucial for applications requiring durability and repairability.

    Purpose of the Study:

    • To design and synthesize a novel imidazolium-containing photocurable monomer for self-healing polymers.
    • To investigate the mechanical and self-healing properties of polymers incorporating this new monomer.
    • To demonstrate the potential of these self-healing polymers in flexible electronic devices.

    Main Methods:

    • Synthesis of a novel imidazolium-containing photocurable monomer (IM-A).
    • Preparation of self-healing polymers via fast photocuring using IM-A and other acrylate monomers.
    • Characterization of mechanical properties (tensile strength, elongation at break) and self-healing efficiency.
    • Fabrication and testing of a flexible electronic device using the self-healing polymer.

    Main Results:

    • The synthesized monomer (IM-A) was successfully incorporated into photocurable polymers.
    • The self-healing polymer IB7-IM5 showed a tensile strength of 3.1 MPa and elongation at break of 205%.
    • Exceptional healing efficiency of 93% was achieved over a wide temperature range (room temperature to 120 °C).
    • A flexible electronic device fabricated on this polymer substrate demonstrated complete conductivity restoration after damage and healing.

    Conclusions:

    • A novel imidazolium-containing monomer enables the creation of high-performance self-healing polymers.
    • The developed materials exhibit excellent mechanical strength, rapid healing, and broad temperature applicability.
    • These self-healing polymers show significant promise for fabricating robust and repairable flexible electronic devices.