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Dynamic polymer material and application thereof

A technology of polymer materials and polymer chains, used in adhesives, coatings, etc., can solve the problem that the characteristics of dynamic reversible covalent bonds are difficult to fully reflect

Inactive Publication Date: 2017-09-05
翁秋梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of situations such as this makes it difficult to fully reflect the characteristics of the dynamic reversible covalent bond itself under normal conditions, and it is necessary to develop a new type of dynamic polymer material to solve the above problems in the prior art

Method used

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  • Dynamic polymer material and application thereof
  • Dynamic polymer material and application thereof
  • Dynamic polymer material and application thereof

Examples

Experimental program
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Embodiment approach

[0105] One embodiment of the present invention, a dynamic polymer material, is characterized in that, it contains the aminomethyl phenyl borate bond that diol element and aminomethyl benzene boronic acid element form on polymer chain skeleton, Wherein the following components are at least obtained after the complete hydrolysis of the aminomethylphenyl borate bond:

[0106] Component (1) is at least one polyol compound (I) containing two or more diol units, wherein the diol units are selected from 1,2-diol units and 1, 3-diol moiety;

[0107] Component (2), which is at least one phenylboronic acid compound (II) containing two or more aminomethylphenylboronic acid units;

[0108] Wherein, at least one polyol compound (I) in component (1) contains three or more diol radicals, or at least one phenylboronic acid compound (II) in component (2) contains three or three More than one aminomethylphenylboronic acid group;

[0109] And, when only containing small molecule polyol compou...

Embodiment 1

[0421] In the there-necked flask, add 10.7ml of aminomethylbenzeneboronic acid-terminated polypropylene glycol (b) (using 2-formylphenylboronic acid, polyetheramine with a molecular weight of about 2000 as a raw material, toluene as a solvent, and sodium borohydride as a reducing agent, Synthesized by Petasis reaction), heated to 120°C under stirring, weighed 4.61g of polyol compound (a) (1,3,5-triacryloylhexahydro-1,3,5-triazine and 3 -Mercapto-1,2-propanediol as raw material, with AIBN as initiator and triethylamine as catalyst, prepared by mercaptan-alkene click addition reaction) was added into a three-necked flask, and it was fully mixed with polypropylene glycol by stirring After 30-40 minutes of reaction, pour it into a suitable mold, and place the sample in a vacuum oven at 80°C for 24 hours for further reaction, then cool to room temperature for 30 minutes, and finally obtain a block of rigid polymer The material has certain surface strength and rigidity, but poor tou...

Embodiment 2

[0424] In a dry and clean flask, measure 20ml 1,2-diol-terminated polyethylene glycol (polyethylene glycol 400 and acrylic acid are used as raw materials to obtain double bond-terminated polyethylene glycol through esterification, and then and 3-mercapto-1,2-propanediol by thiol-alkene click addition reaction), heated to 80°C, and added 5.34g of aminomethylbenzeneboronic acid compound (a) under stirring (using 1,3, 6-triaminohexane, 2-formylphenylboronic acid as raw materials, toluene as solvent, sodium borohydride as reducing agent, synthesized by Petasis reaction), after stirring evenly, a small amount of triethylamine was added dropwise, and continued at 80°C Stirring reaction is carried out. After stirring for about 1-1.5h, the polymer sample with a certain viscosity is poured into a suitable mold, placed in a vacuum oven at 80°C to continue the reaction for 24h, and then cooled to room temperature for 30min. Colloidal solid samples of polymers. Make it into a dumbbell-sh...

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Abstract

The invention discloses a dynamic polymer material. A polymer chain skeleton comprises an aminomethyl phenylboronic acid ester bond formed by a diol group and an aminomethyl phenylboronic acid group, and after complete hydrolysis of the aminomethyl phenylboronic acid ester bond, at least one polyalcohol compound (I) with two or more 1,2-diol groups and / or 1,3-diol groups and at least one phenylboronic acid compound (II) with two or more aminomethyl phenylboronic acid groups are obtained. Owing to high dynamic reversibility of the aminomethyl phenylboronic acid ester bond, the polymer material has reusability and recyclability. In addition, when the polymer material in a specific formulation is subjected to external force action, the aminomethyl phenylboronic acid ester bond which serves as a sacrifice bond can be broken in priority, and consequently high toughness of the material can be achieved. The dynamic polymer material can be widely applied as a tough material, a seal material, interlayer adhesives, force sensors and the like.

Description

technical field [0001] The invention relates to the field of intelligent polymer materials, in particular to a polymer material composed of dynamic reversible covalent bonds. Background technique [0002] The progress of material science and technology has greatly promoted the development and progress of human society. Since the beginning of the 20th century, the high-tech group formed by information technology, genetic engineering technology, new energy technology, aerospace technology, nanotechnology, etc. has promoted the rapid development of material science. Traditional single structural materials or functional materials can no longer meet the needs of these rapidly developing high-tech fields, and various multifunctional and intelligent materials have emerged as the times require. Among them, a series of new polymer materials based on dynamic chemistry have shown remarkable development trends. [0003] Dynamic chemistry is an interdisciplinary subject developed by co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G79/08C09J185/04
CPCC08F8/34C08G65/3348C08G65/48C08G79/08C08G81/00C08G81/021C08G81/024C08G81/025C08G2650/04C08G2650/54C08K3/36C08K9/06C08K13/02C08L39/06C08L87/00C08L2201/02C08L2205/03C09D187/00C09J185/04C08F220/06C08L47/00C08L23/0861C08L51/04C08L1/284C08K7/14C08L83/04
Inventor 不公告发明人
Owner 翁秋梅
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