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Ionic cycloolefin polymer, photo-self-repairing material based on ionic cycloolefin polymer, and preparation method and application of photo-self-repairing material

A cyclic olefin polymer and self-healing material technology, applied in the field of self-healing materials, can solve the problems of complex preparation process and promotion limitations, and achieve the effects of good substrate universality, obvious photothermal effect, and mild conditions.

Active Publication Date: 2021-12-31
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it can be found that the preparation process is relatively complicated, and further promotion is limited.

Method used

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  • Ionic cycloolefin polymer, photo-self-repairing material based on ionic cycloolefin polymer, and preparation method and application of photo-self-repairing material
  • Ionic cycloolefin polymer, photo-self-repairing material based on ionic cycloolefin polymer, and preparation method and application of photo-self-repairing material
  • Ionic cycloolefin polymer, photo-self-repairing material based on ionic cycloolefin polymer, and preparation method and application of photo-self-repairing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The general structural formula of ionic cycloolefin polymer is:

[0050]

[0051] Wherein, side chain length m=3, n=0, degree of polymerization y=100, X=perfluorobutanesulfonic acid anion (CF 3 (CF 2 ) 3 SO 3 - ), the synthesis steps are as follows:

[0052] The following operations were all carried out in a Braun (Mbraun) glove box: 3-(2-(bicyclo[2.2.1]hept-5-en-2-ylmethoxy)-2-oxo was added to a 50mL polymerization bottle Substituted alkyl)-1-methyl-1hydrogen-imidazole perfluorobutanesulfonate (1.0g, 1.74mmol) and 10mL ultra-dry dichloromethane were stirred and mixed for 15 minutes. Add 15.4mg (0.0174mmol) of dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](benzylidene)bis(3- bromopyridine) ruthenium (II) catalyst and 2 mL of dichloromethane to obtain a catalyst solution. Under the condition of stirring, the catalyst solution was added into the above-mentioned polymerization bottle to carry out the polymerization reaction at 25° C. for 12 hours,...

Embodiment 2

[0062] The general structural formula of ionic cycloolefin polymer is:

[0063]

[0064] Wherein side chain length m=3, n=0, degree of polymerization y=800, X=perfluorobutanesulfonic acid anion (CF 3 (CF 2 ) 3 SO 3 - ), the synthesis steps are as follows:

[0065] The following operations were all carried out in a Braun (Mbraun) glove box: 3-(2-(bicyclo[2.2.1]hept-5-en-2-ylmethoxy)-2-oxo was added to a 50mL polymerization bottle Substituted alkyl)-1-methyl-1hydrogen-imidazole perfluorobutanesulfonate (1.0g, 1.74mmol) and 10mL ultra-dry dichloromethane were stirred and mixed for 15 minutes. Add 1.93mg (0.0022mmol) of dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](benzylidene)bis(3- bromopyridine) ruthenium (II) catalyst and 0.5 mL of dichloromethane to obtain a catalyst solution. Under the condition of stirring, the catalyst solution was added into the above-mentioned polymerization bottle to carry out the polymerization reaction at 40° C. for 12 hours...

Embodiment 3

[0070] The general structural formula of ionic cycloolefin polymer is:

[0071]

[0072] Wherein side chain length m=3, n=4, degree of polymerization y=100, X=two trifluoromethylsulfonimide anion (Tf 2 N - ), the synthesis steps are as follows:

[0073] The following operations were all carried out in a Braun (Mbraun) glove box: 3-(2-(bicyclo[2.2.1]hept-5-en-2-ylmethoxy)-2-oxo was added to a 50mL polymerization bottle Substituted alkyl)-1-methyl-1hydrogen-imidazole perfluorobutanesulfonate (1.0g, 1.64mmol) and 10mL ultra-dry dichloromethane were stirred and mixed for 15 minutes. Add 14.48mg (0.0164mmol) of dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](benzylidene)bis(3- bromopyridine) ruthenium (II) catalyst and 2 mL of dichloromethane to obtain a catalyst solution. Under the condition of stirring, the catalyst solution was added into the above-mentioned polymerization bottle to carry out the polymerization reaction at 30° C. for 12 hours, and the reactio...

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Abstract

The invention discloses an ionic cycloolefin polymer, a photo-self-repairing material based on the ionic cycloolefin polymer, and a preparation method and application of the photo-self-repairing material, and belongs to the technical field of self-repairing materials. Reversible ions exist in the structure of the prepared ionic cycloolefin polymer, and the polymer shows excellent photothermal conversion capacity under infrared light, so that the polymer has efficient repairing performance under light stimulation; and meanwhile, a Grubbs 3 ruthenium catalyst adopted in the preparation process of the self-repairing material is used for catalyzing ring-opening metathesis polymerization, and after the polymerization reaction is completed and a terminating agent is added, a Grubbs 3 derivative obtained by reacting the Grubbs 3 ruthenium catalyst with the terminating agent also has an excellent photothermal effect, so that a photothermal conversion agent does not need to be additionally added, and the application of the Grubbs 3 ruthenium catalyst is widened.

Description

technical field [0001] The invention relates to the technical field of self-repairing materials, in particular to an ionic cycloolefin polymer, a light self-repairing material based on the ionic cycloolefin polymer, and a preparation method and application thereof. Background technique [0002] In recent years, inspired by the unique and efficient wound-healing process in biological systems, researchers have developed a variety of synthetic polymer materials that achieve almost complete repair after external damage. In the field of self-healing materials, there is always an inherent contradiction between the repair efficiency and mechanical properties of materials, which means that to achieve or accelerate the self-healing process of materials with high mechanical strength, external stimuli need to be applied. These stimuli include heat, light, solvents, pH, etc. The range of self-healing effect caused by traditional heating methods is limited, and the heating process may al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/08C08J5/18C08L65/00
CPCC08G61/08C08J5/18C08J2365/00C08G2261/11C08G2261/1426C08G2261/143C08G2261/3324C08G2261/418C08G2261/516Y02P20/54
Inventor 李悦生聂凤敏潘莉
Owner TIANJIN UNIV
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