Force-induced responsive supramolecular polymer

A supramolecular polymer and supramolecular technology, applied in the field of force-responsive supramolecular polymers, can solve the problems of single properties and performance, difficulty in meeting the needs of multifunctional and intelligent materials, etc.

Pending Publication Date: 2020-07-07
厦门天策材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, ordinary polymers containing force-sensitive groups have relatively single properties and perfor...

Method used

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  • Force-induced responsive supramolecular polymer
  • Force-induced responsive supramolecular polymer
  • Force-induced responsive supramolecular polymer

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[1741] In the preparation process of the mechanoresponsive supramolecular polymer composition, there is no special limitation on the amount of each component raw material of the mechanoresponsive supramolecular polymer. performance adjustments.

[1742]In an embodiment of the present invention, the form of the mechanoresponsive supramolecular polymer can be solution, paste, glue, common solid, elastomer, gel (including hydrogel, organogel, oligomer swelling gels, plasticizer-swelled gels, ionic liquid-swelled gels), foams, etc. Among them, the content of soluble small molecular weight components contained in ordinary solids and foam materials is generally not higher than 10wt%, while the content of small molecular weight components contained in gels is generally not lower than 50wt%. Ordinary solids have relatively fixed shape and volume, better mechanical strength, and are not bound by organic swelling agents or water. Elastomers have the general properties of ordinary soli...

Embodiment 1

[1757] Using the triol compound a containing the lysensitizing group as the initiator, the ring-opening polymer reaction of 15 molar equivalents of ε-caprolactone was initiated under the catalysis of stannous octoate to obtain the three-armed polyester c whose terminal group is hydroxyl. React 1 molar equivalent of the obtained polymer c with 3 molar equivalents of pyridine-4-acyl chloride under the catalysis of triethylamine to convert terminal hydroxyl groups into pyridyl groups to obtain a three-armed polyester d whose terminal groups are pyridyl groups. Compound e containing a ligand group is reacted with excess trimellitic acid chloride under the catalysis of triethylamine to obtain compound f. 10 molar equivalents of ε-caprolactone were initiated by 1 molar equivalent of 4-hydroxymethylpyridine to carry out ring-opening reaction to obtain polyester g with a hydroxyl group at one end. Polyester h is obtained by reacting 1 molar equivalent of compound f with 2 molar equiva...

Embodiment 2

[1761] Refluxing 1,4,5,8-naphthalene tetracarboxylic anhydride and excess glycine tert-butyl ester in 1,4-dioxane to obtain compound a. Compound a is hydrolyzed under the catalysis of trifluoroacetic acid to convert tert-butyl ester group into carboxyl group to obtain compound b. Compound b is amidated with excess 1,8-naphthyridine-2,7-diamine to obtain compound c. The obtained compound c is reacted with excess adipoyl chloride under the catalysis of triethylamine to obtain compound d. 1 molar equivalent of compound d and 2 molar equivalents of ureidopyrimidinone e with a hydroxyl group at one end are reacted under the catalysis of triethylamine to obtain small molecular supramolecular monomer f.

[1762] Sonogashira coupling reaction was performed on p-bromophenol and excess molar equivalent of 4,7-diynylbenzothiadiazole to obtain compound g. 1 molar equivalent of 5-bromoresorcinol and 2 molar equivalents of compound h were reacted under the catalyst of triethylamine to obt...

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Abstract

The invention discloses a force-induced responsive supramolecular polymer. The force-induced responsive supramolecular polymer comprises a force-sensitive group and at least one supramolecular interaction, wherein the supramolecular interaction does not form phase separation and/or crystallization, and the supramolecular interaction is a necessary condition for forming the supramolecular polymer and can provide reversibility, dynamics, self-repairability, super-toughness and other characteristics; and the force-sensitive group can be subjected to chemical and/or physical changes under the action of mechanical force, so that the polymer can flexibly realize the characteristics of force-induced luminescence, force-induced fluorescence, force-induced chromism, force-induced catalysis, force-induced supramolecular crosslinking and the like; the force-sensitive group and the supramolecular interaction are combined, so that the polymer disclosed by the invention is widely applied to the aspects of detection, sensing, warning materials and the like.

Description

technical field [0001] The invention relates to an intelligent material, in particular to a force-responsive supramolecular polymer. Background technique [0002] During the use of polymer materials, the probability of being subjected to mechanical force is extremely high. However, mechanical forces often have destructive effects on polymer materials, such as fatigue, fracture, wear and so on. If the action of mechanical force can be converted into a beneficial action, the application range of the material will be greatly improved, and even the lifespan will be greatly extended. Introducing force-sensitive groups that can directly and / or indirectly produce specific chemical and / or physical responses under mechanical force into the polymer structure can obtain beneficial signal output or generate new substances and new structures, etc., It plays a very important role in improving the function of polymer materials. However, at present, ordinary polymers containing force-sen...

Claims

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Application Information

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IPC IPC(8): C08J3/24
CPCC08J3/243
Inventor 不公告发明人
Owner 厦门天策材料科技有限公司
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