Force-induced responsive supramolecular polymer

A supramolecular polymer and supramolecular technology, applied in the field of force-responsive supramolecular polymers, can solve limited, difficult to meet the needs of multifunctional and intelligent materials, and limited performance development.

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, the research and development of force-sensitive groups is still relatively limited, and the polymer structure containing force-sensitive groups is relatively simple, resulting in limited performance development, greatly limiting its application range, and it is also difficult to meet the requirements of various high-tech materials for multifunctional materials. demand for modernization and intelligence

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[1767] According to one embodiment of the present invention, at least one component of the mechanoresponsive supramolecular polymer contains at least one hard phase and at least one soft phase.

[1768] Wherein, the hard phase is a crystalline phase and / or a phase incompatible with the soft segment that are mixed and / or independently formed between the hard segments in the polymer, and form a phase-separation physical polymerization based on the hard segment and / or cross-linking; the soft phase is jointly formed by each soft segment in an amorphous state and other selectively existing supramolecular monomers that may or may not produce phase separation. The physical polymerization / crosslinking based on the hard segment enables the polymer to have similar physical properties after covalent polymerization / crosslinking, including but not limited to increased apparent molecular weight, elasticity, dimensional stability, and enhanced mechanical strength. Hard segment phase-separati...

Embodiment 1

[1924] In Example 1, compound a containing a mesensitizing group was used as an initiator to initiate ring-opening polymerization of 20 molar equivalents of ethylene oxide to obtain polyethylene glycol with a ligand group at one end and a hydroxyl group at the other end of the mesensizing group. The supramolecular monomer A is obtained by reacting polyethylene glycol with equimolar equivalents and 2,2':6',2"-terpyridine-4-formyl chloride under the catalysis of triethylamine.

[1925] Compound c was obtained by Sonogashira coupling reaction between equimolar equivalents of 9-acetylene anthracene and compound b. The equimolar equivalent of 2-methacryloyloxyethylphosphorylcholine and 3-mercapto-1,2-diol are subjected to a mercapto-ene click reaction to obtain a diol containing a phosphorylcholine ion group. Using potassium carbonate as a catalyst and tetrabutylammonium bromide as a phase transfer agent, react 20 molar equivalents of the obtained diol with 21 molar equivalents of ...

Embodiment 2

[1928] Example 2 The alcohol compound a containing a ligand group was reacted with excess succinoyl chloride under the catalysis of triethylamine to obtain an acid chloride compound containing a ligand group. reacting the obtained acid chloride compound and excess diol compound b containing a lysensitizing group under the catalysis of triethylamine to obtain an alcohol compound containing a sensitizing group of a ligand. The obtained alcohol compound and equimolar equivalent of 2-bromoisobutyryl bromide are reacted under the catalysis of triethylamine to obtain an initiator containing a mesensitizing group. With 1 molar equivalent of the obtained compound as an initiator, cuprous bromide and pentamethyldiethylenetriamine (PMDETA) are used as catalysts to initiate the polymerization of 30 molar equivalents of butyl acrylate and 20 molar equivalents of methyl methacrylate successively to obtain Polyacrylate-based supramolecular monomer A.

[1929] React equimolar equivalents of...

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Abstract

The invention discloses a force-induced responsive supramolecular polymer. The force-induced responsive supramolecular polymer comprises at least two force-sensitive groups and at least one supramolecular interaction. The force-induced responsiveness of the force-sensitive group enables the polymer to flexibly realize the characteristics of force-induced luminescence, force-induced fluorescence, force-induced discoloration, force-induced catalysis, force-induced chemical reaction and the like; the orthogonality/cooperativity/sequence of multiple force-sensitive groups can achieve the special effects of sequential discoloration, color mixing, force-induced crosslinking and the like. The supramolecular interactionis a necessary condition for forming the supramolecular polymer, and can provide reversibility, dynamics, self-repairability, super-toughness and other characteristics. The supramolecular interaction is combined with various force-sensitive groups, so that the polymer is widelyapplied 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 mechanoresponsive 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, the research and development of force...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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