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Multifunctional conductive ionic liquid gel as well as preparation method and application thereof

A technology of conductive ions and ionic liquids, which is applied in the field of flexible ion conductor materials, can solve the problems of poor comprehensive performance and single function, and achieve good application prospects, simple preparation process, and high ion conductivity.

Active Publication Date: 2021-10-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the existing literature, no such multifunctional ionic liquid gels have been reported
[0005] In summary, the existing ionic liquid gels have the disadvantages of single function and poor comprehensive performance.

Method used

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  • Multifunctional conductive ionic liquid gel as well as preparation method and application thereof
  • Multifunctional conductive ionic liquid gel as well as preparation method and application thereof
  • Multifunctional conductive ionic liquid gel as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]Select the molar ratio of monomer 2,2,2-trifluoroethyl acrylate and monomer acrylamide to be 2:1, ionic liquid 1-ethyl-3-methylimidazole bistrifluoromethylsulfonimide salt Be 1.5: 1 with monomer mass ratio, the consumption of photoinitiator 2-hydroxyl-2-methyl-1-[4-(2-hydroxyethoxyl group) phenyl]-1-acetone is monomer molar weight 0.5%. According to the above-mentioned amount, the raw materials are mixed evenly to become a transparent mixed solution, and then put into a glass glove box full of inert gas for deoxygenation, and then the mixed solution is injected into a self-made glass plate mold in the glove box, and the solution is heated under a UV lamp (100W, 365nm) ) under irradiation for 1.5h to obtain Longel-4050 ionic liquid gel.

Embodiment 2

[0038] The mass ratio of the ionic liquid 1-ethyl-3-methylimidazole bistrifluoromethylsulfonimide salt to the monomer is 1:1, and the remaining parameters and steps are the same as in Example 1 to obtain the Iongel-5050 ionic liquid gel .

Embodiment 3

[0040] The mass ratio of the ionic liquid 1-ethyl-3-methylimidazole bistrifluoromethylsulfonimide salt to the monomer is 7:3, and the remaining parameters and steps are the same as in Example 1 to obtain the Iongel-3050 ionic liquid gel .

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Abstract

The invention belongs to the technical field of flexible ionic conductor materials, and discloses multifunctional conductive ionic liquid gel as well as a preparation method and application thereof. The method comprises the following steps: 1) uniformly mixing a monomer A, a monomer B, an initiator and a hydrophobic ionic liquid to obtain a precursor solution; and 2) in a protective atmosphere, curing the precursor solution to obtain ionic liquid gel. The monomer A is a fluorine-containing acrylate compound; and the monomer B comprises one or more of acrylamide and acrylic acid. The method is simple, the prepared ionic liquid gel has high light transmittance, good mechanical strength and rebound resilience, hydrophobicity and lipophobicity, underwater self-repairing and self-adhesion and high ionic conductivity, and the prepared flexible sensor has the advantages of being high in sensitivity and good in stability and repeatability. The ionic liquid gel is used in the fields of flexible sensors, wearable intelligent devices, medical detection equipment and / or optical devices.

Description

technical field [0001] The invention belongs to the technical field of flexible ionic conductor materials, and in particular relates to a multifunctional conductive ionic liquid gel and its preparation method and application. Background technique [0002] Flexible ionic conductors are a class of materials that use ions as charge carriers to transmit signals and can be bent or stretched, and have many functions that are difficult for electronic conductors to achieve. [0003] Ionic liquid gel is a kind of gel material formed with ionic liquid as the dispersion medium, and it is also a typical flexible ion conductor material. Due to the combination of the properties of ionic liquids and polymer networks, ionic liquid gels not only have high ionic conductivity, non-flammability, high thermal / chemical / electrochemical stability, but also have good flexibility and mechanical properties, Can convert external stimuli into electrical signals. To date, ionic liquid gels have gained ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/24C08F220/56C08F2/48C08K5/435C08J3/075C08L33/16
CPCC08F220/24C08F2/48C08K5/435C08J3/075C08J2333/16C08F220/56
Inventor 岳衎徐立国黄振恺
Owner SOUTH CHINA UNIV OF TECH
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