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Multiple-response type self-repair hydrogel material and preparation method and application thereof

A multi-response, hydrogel technology, applied in the field of polymer materials, can solve the problems of inability to meet the application, poor self-healing performance, etc., and achieve the effect of good self-healing performance

Inactive Publication Date: 2018-05-04
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the self-healing performance of most hydrogel materials is poor, which cannot meet the applications of biomedical materials, nanomaterials, optoelectronic materials, etc. It is especially important to design and prepare multifunctional composite hydrogels.

Method used

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  • Multiple-response type self-repair hydrogel material and preparation method and application thereof
  • Multiple-response type self-repair hydrogel material and preparation method and application thereof
  • Multiple-response type self-repair hydrogel material and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0044] The preparation of a multi-response type self-healing hydrogel material comprises the following steps:

[0045] Step 1: Dissolve N-isopropylacrylamide in dimethylformamide, add azobisisobutyronitrile initiator, then add dopamine acrylamide for mixing, fill with nitrogen for 30 minutes, and carry out polymerization reaction at 65°C. The polymerization reaction time is 12 hours. After the reaction is completed, diethyl ether is added dropwise to the reaction solution to form polydopamine methyl acrylate-N-isopropylacrylamide (NIDO).

[0046]Step 2: Mix N-isopropylacrylamide and 4-vinylbenzeneboronic acid, dissolve in dimethyl sulfoxide, add azobisisobutyronitrile initiator, and carry out polymerization under nitrogen atmosphere and 65°C Reaction, the polymerization reaction time is 24h, after the reaction is completed, diethyl ether is added dropwise to the reaction solution to form poly-N-isopropylacrylamide-4-vinylphenylboronic acid (NIBA).

[0047] Step 3: Take 2 mg o...

Embodiment 2

[0049] The preparation of a multi-response type self-healing hydrogel material comprises the following steps:

[0050] Add 3.3 mg of NIDO prepared in Step 1 of Example 1 and 6.7 mg of NIBA prepared in Step 2 of Example 1 into 100 μl of water to obtain a multi-responsive self-healing hydrogel material.

Embodiment 3

[0052] The preparation of a multi-response type self-healing hydrogel material comprises the following steps:

[0053] Add 4 mg of NIDO prepared in Step 1 of Example 1 and 4 mg of NIBA prepared in Step 2 of Example 1 into 100 μl of water to obtain a multi-responsive self-healing hydrogel material.

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Abstract

The invention provides a multiple-response type self-repair hydrogel material and a preparation method and application thereof. The multiple-response type self-repair hydrogel material is prepared from polydopamine methacrylate-N-isopropylacrylamide, poly-N-isopropylacrylamide-4-vinyl benzeneboronic acid and water. The multiple-response type self-repair hydrogel material has the characteristics that the effects of pH (potential of hydrogen) response and temperature response are realized, the self-repair property is realized, and the application prospect is broad in the fields of biomedical materials, nanometer materials and photoelectric materials.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a multi-response self-repairing hydrogel material and its preparation method and application. Background technique [0002] Hydrogel materials are a type of soft materials with a three-dimensional polymer network structure, generally loosely cross-linked polymer materials containing a small amount of solid content, and contain a large amount of water inside, which is an important biomedical material. Hydrogel materials have the ability to undergo solution-gel transitions with external stimuli, thereby responding to external stimuli. Among the response types, pH changes and temperature changes are the two most important stimulus signals. They are physiological and biochemical systems. two key influencing factors. At the same time, the self-healing performance of most hydrogel materials is poor, which cannot meet the applications of biomedical materials, nanomaterials, optoelectro...

Claims

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Application Information

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IPC IPC(8): C08J3/075C08L33/24C08L33/14
CPCC08J3/075C08J2333/14C08J2333/24C08J2433/14C08J2433/24C08L33/14C08L33/24
Inventor 高福加瓦米内贾德阿明杜磊南图吴宇航
Owner SHENZHEN UNIV
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