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 difficult to meet the needs of multi-functional and intelligent materials, single properties and performance, 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

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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

[1658] In the preparation process of the force-responsive supramolecular polymer composition, the amount of each component raw material of the force-responsive supramolecular polymer is not particularly limited, and those skilled in the art can use the actual preparation situation and the target polymer according to the actual preparation. performance tuning.

[1659] In the embodiment of the present invention, the form of the force-responsive supramolecular polymer can be solution, paste, glue, ordinary solid, elastomer, gel (including hydrogel, organogel, oligomer swelling) gel, plasticizer swollen gel, ionic liquid swollen gel), foam, etc. Among them, the content of soluble small molecular weight components contained in ordinary solid and foam materials is generally not higher than 10wt%, and the content of small molecular weight components contained in gel is generally not less than 50wt%. Ordinary solids are relatively fixed in shape and volume, have better mechanical st...

Embodiment 1

[1673] Example 1 The ureidopyrimidinone a capped with one end of a hydroxyl group is reacted with excess succinyl chloride under the catalysis of triethylamine to obtain the ureidopyrimidinone b with an acid chloride group at one end. The ureidopyrimidinone c terminated by a hydroxyl group at one end is reacted with excess succinyl chloride under the catalysis of triethylamine to obtain the ureidopyrimidinone d with an acid chloride group at one end.

[1674]

[1675] Equimolar equivalents of N-(2-hydroxyethyl)maleimide and compound d are reacted under the catalysis of triethylamine to obtain compound e. 5 molar equivalents of diol compound e containing force-sensitive groups, 9 molar equivalents of compound b and 1 molar equivalent of compound d were reacted under the catalysis of triethylamine to obtain two supramolecular monomer mixtures f. 100 parts by mass of mixture f and 5 parts by mass of compound e were fully blended, swollen in 1,4-dioxane solvent, placed in a mol...

Embodiment 2

[1676] Example 2 1 molar equivalent of hydrogen-containing dimethylsiloxane end-capped with acid chloride groups at both ends (average molecular weight of 5kDa, hydrogen content of 3%) and 2 molar equivalents of 4-hydroxypyridine-2,6-dicarboxylic acid were added to Triethylamine reacts under the catalysis of triethylamine to obtain polysiloxane a capped with force-sensitive ligand groups at both ends. The tripeptide compound glycyl-glycyl-glycine and excess 4-pentenoyl chloride are reacted under the catalysis of triethylamine to obtain the tripeptide compound b with an alkenyl group at one end. The equimolar equivalent of the obtained tripeptide compound b and ethylamine are subjected to amidation reaction to obtain compound c. Allyl hydroxyethyl ether and 5-chloromethyl-2-oxazolidinone are dissolved in toluene in a molar ratio of 1:1, potassium carbonate is used as a catalyst, and tetrabutylammonium bromide is used as a phase transfer agent to obtain Compound d with an allyl...

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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 hydrogen bond interaction, wherein the hydrogen-bond interaction is formed by at least one hydrogen-bond group located at the end group and/or side group and/or side chain skeleton of a supramolecular monomer, and at leastpart of the supramolecular hydrogen-bond interaction forms phase separation and/or crystallization; the hydrogen-bond interaction is a necessary condition for forming the supramolecular polymer, andcan provide reversibility, dynamics, self-repairability, super-toughness and other characteristics. The hydrogen-bond interaction and the force-sensitive group are combined, so that the polymer 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 forces is extremely high. However, the effects of mechanical force on polymer materials are often destructive, such as fatigue, fracture, wear and so on. If the mechanical force can be converted into a beneficial effect, the application range of the material will be greatly improved, and even the service life will be greatly extended. Introducing force-sensitive groups that can directly and / or indirectly generate specific chemical and / or physical responses under the action of mechanical force into the polymer structure can obtain beneficial signal output or generate new substances, generate new structures, etc., It plays a very important role in improving the function of polymer materials. However, the properties and properties...

Claims

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Application Information

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IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 不公告发明人
Owner 厦门天策材料科技有限公司
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