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Method for regulating and controlling thermal response temperature of ionic liquid gel, thermal response ionic liquid gel and application thereof

An ionic liquid and thermal response technology, applied in the field of responsive materials, can solve problems such as insufficient mechanical properties

Active Publication Date: 2021-08-24
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for flexible ionic liquid gel materials applied to flexible wearable devices, it is not enough for flexible ionic liquid gel materials to have tunable mechanical properties, and it is necessary to further develop ionic liquid-based smart responsive gel materials. The comprehensive properties, such as in the case of ensuring the stability of mechanical properties and adhesion, can realize the regulation of the thermal response temperature of ionic liquid gels, so as to broaden the application range of ionic liquids in smart responsive materials

Method used

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  • Method for regulating and controlling thermal response temperature of ionic liquid gel, thermal response ionic liquid gel and application thereof
  • Method for regulating and controlling thermal response temperature of ionic liquid gel, thermal response ionic liquid gel and application thereof
  • Method for regulating and controlling thermal response temperature of ionic liquid gel, thermal response ionic liquid gel and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0103] (1) Mix 0.6 g of butyl acrylate monomer and 0.4 g of ionic liquid (1-ethyl-3-methylimidazolium trifluoromethanesulfonimide salt) to obtain mixed solution A; wherein, butyl acrylate The mass ratio of ester monomer mixed solution A is 6:10;

[0104] (2) The mixed solution A obtained in the step (1) is mixed with 10 mg of ethylene glycol dimethacrylate (EGDMA for short, and the ratio of the amount of butyl acrylate monomer is 1:100) and 2 mg of 2,2-diethoxyacetophenone (ratio of 2:1000 to butyl acrylate monomer) was heated in an oven at 80°C and the solution was thoroughly mixed with ultrasound to obtain a mixed solution B.

[0105] (3) The mixed solution B obtained in the step (1) was transferred to the target mold and irradiated with ultraviolet light for 40 minutes to carry out ultraviolet light-induced free radical polymerization to obtain a heat-responsive ionic liquid gel.

Embodiment 2

[0107] The difference from Example 1 is that the ionic liquid is 1-propyl-3-methylimidazolium bistrifluoromethanesulfonimide salt, and the rest of the steps are the same as in Example 1.

Embodiment 3

[0109] The difference from Example 1 is that the ionic liquid is 1-butyl-3-methylimidazolium bistrifluoromethanesulfonimide salt, and the rest of the steps are the same as in Example 1.

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Abstract

The invention provides a method for regulating and controlling thermal response temperature of ionic liquid gel, and belongs to the technical field of response materials. The preparation method comprises the following steps: mixing a mixed solution of an acrylate monomer and an ionic liquid with a cross-linking agent and a photoinitiator, and initiating a free radical polymerization reaction in the presence of ultraviolet light to obtain thermal response ionic liquid gel; the thermal response temperature of the ionic liquid gel is regulated and controlled by regulating and controlling the mass ratio of the acrylate monomer to the ionic liquid and the length of a side chain of the acrylate monomer, so that the prepared thermal response ionic liquid gel has the property of adjustable thermal response temperature, and the application range of the ionic liquid in an intelligent response material can be widened. The result of the embodiment shows that the thermal response temperature of the ionic liquid gel can be regulated and controlled in a large range from -32 DEG C to 172 DEG C by regulating and controlling the ratio of the butyl acrylate monomer to the ionic liquid and the lengths of different cation side chains.

Description

technical field [0001] The invention relates to the technical field of responsive materials, in particular to a method for regulating the thermal response temperature of an ionic liquid gel, a thermally responsive ionic liquid gel and applications thereof. Background technique [0002] Smart responsive materials refer to materials that can respond to external stimuli such as light, heat, electricity, magnetism, and solvents. With the rapid development of material science in recent years, more and more smart responsive materials have been developed and play an indispensable role in various fields. Polymer gel is a quasi-solid soft material with a stable three-dimensional network structure composed of cross-linked polymers and solvents. Thanks to its soft and wet characteristics, it is often used in biomedicine, flexible electronic devices, and defense systems. Stained coating and other fields. Among them, gel materials with intelligent responsiveness have been widely used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F226/06C08F222/14C08F2/48
CPCC08F220/1804C08F226/06C08F2/48C08F222/102
Inventor 刘明杰赵天艺陈列
Owner BEIHANG UNIV
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