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Force-induced responsive supramolecular polymer

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

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 performances, and it is difficult to meet the needs of various high-tech materials for multifunctional and intelligent materials.

Method used

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  • Force-induced responsive supramolecular polymer

Examples

Experimental program
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Embodiment approach

[0030] According to one embodiment of the present invention, there is provided a mechanoresponsive supramolecular polymer, which contains a mechanosensitive group and at least one selected from the group including but not limited to halogen bond interaction, cation-π interaction, anion-π interaction , Benzene-fluorobenzene interaction, π-π stacking interaction, ion interaction (positive and negative ion pair interaction), ion-dipole interaction, ionic hydrogen bond interaction, metalophilic interaction, free radical cation dimerization, Lewis acid-base pair interaction . Supramolecular interactions of host-guest interactions; wherein at least one supramolecular interaction causes phase separation and / or crystallization.

[0031] According to another embodiment of the present invention, there is provided a method for realizing mechanoresponse, which is characterized in that a mechanoresponse supramolecular polymer is provided, which contains a mechanosensitive group and at least...

Embodiment 1

[1713]Example 1 Dissolve limonene oxide and catalyst in toluene under anhydrous and air-free conditions of 90°C, keep the molar ratio of limonene oxide and catalyst at 50:1, feed 10bar carbon dioxide into the reaction vessel, and after the reaction is complete, the crude The product was precipitated with methanol to obtain polylimonene carbonate a terminated by a hydroxyl group. Polymer a and excess n-butyl 3-mercaptopropionate are dissolved in tetrahydrofuran and fully blended, reacted in the presence of a photoinitiator BDK and irradiated by an ultraviolet lamp to obtain polymer b. Equivalent molar equivalents of 2-maleimidoacetic acid and polymer b are reacted under the catalysis of DCC and DMAP to obtain polymer c with a maleimide group at one end. The equimolar equivalents of compound d and polymer a were reacted under the catalysis of DCC and DMAP to obtain polylimonene carbonate e with a lysensitizing group precursor at one end. Reacting equimolar equivalents of heptaf...

Embodiment 2

[1716] Example 2 Ethyl adamantane-1-carboxylate and hydroxyethyl methacrylate in equivalent molar equivalents were transesterified to obtain a methacrylate monomer a containing adamantane. Using 1 molar equivalent of benzoyl peroxide (BPO) as the initiator and 1 molar equivalent of thioglycolic acid as the chain transfer agent at 90 ° C to initiate the polymerization of 50 molar equivalents of monomer a and 50 molar equivalents of tert-butyl methacrylate to obtain single-ended Carboxy-terminated part of the pendant group is adamantane polymer b. Using 1 molar equivalent of benzoyl peroxide (BPO) as the initiator and 1 molar equivalent of thioglycolic acid as the chain transfer agent at 90°C to initiate the polymerization of 100 molar equivalents of tert-butyl methacrylate, a single-terminal carboxyl-terminated polymer c was obtained. Reaction of equimolar equivalents of polymer b and lysensitizing group d under the catalysis of DCC and DMAP, linking the polymer with the hydrox...

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Abstract

The invention discloses a force-induced responsive supramolecular polymer, which is characterized in that the polymer comprises a force-sensitive group and at least one supramolecular interaction, wherein the at least one supramolecular interaction causes phase separation and / or crystallization; under the action of mechanical force, the supramolecular polymer realizes force-induced response. By combining the force-sensitive group, the supramolecular interaction, supramolecular phase separation and / or crystallization, the force-induced responsive supramolecular polymer can have good dynamics, self-repairability, processability, super-toughness and shape memory, and can be widely applied to 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): 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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