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Updated: Jun 23, 2025

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

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

Published on: March 24, 2018

Versatile ionic liquid gels formed by dynamic covalent bonding and microphase separated structures.

Zeyu Zhang¹, Xin Zhao¹, Xing Song²

¹Key Laboratory of Bio-based Material Science & Technology (Northeast Forestry University) Ministry of Education, School of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China. renshixue@nefu.edu.cn.

Materials Horizons

|June 24, 2024

Summary

This summary is machine-generated.

Ionic liquid gels (DI-PR) were developed with rapid self-healing and high toughness. Rutin as a cross-linker improved material properties, making them suitable for anticorrosion coatings.

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Published on: February 27, 2016

Area of Science:

Materials Science
Polymer Chemistry

Background:

Achieving rapid self-healing and high toughness simultaneously in ionic liquid gels is a significant challenge.
Existing materials often compromise one property for the other.

Purpose of the Study:

To develop novel ionic liquid gels (DI-PR) with enhanced self-healing and toughness.
To explore the use of rutin as a "rigid-flexible" cross-linking agent to improve material properties.

Main Methods:

Preparation of DI-PR ionic liquid gels using polycaprolactone diol, isophorone diisocyanate, dimethylethyleneglyoxime, and rutin.
Characterization of mechanical properties, including tensile strength, elongation at break, and toughness.
Evaluation of self-healing rate, temperature stability, and adhesion to steel.

Main Results:

DI-PR gels exhibited high tensile strength (16.5 MPa), elongation at break (1132.6%), and toughness (52.6 MJ m^-3).
The material demonstrated rapid self-healing (92% at room temperature within 1 s rebound) and functional stability from -50 °C to 140 °C.
Exceptional adhesion toughness (>2000 J m^-2) to steel was observed, indicating suitability for protective coatings.

Conclusions:

The developed DI-PR ionic liquid gels successfully combine rapid self-healing with high toughness.
Rutin's unique "rigid-flexible" structure provides a novel approach to enhance the toughness of soft materials through synergistic interactions.
These gels are promising for applications as anticorrosion coatings for pipelines in demanding environments.