Preparation method of PNAGA/PANI self-repairing conductive hydrogel

A conductive hydrogel and self-repairing technology, which is applied in the preparation of PNAGA/PANI self-repairing conductive hydrogel and the field of self-repairing conductive hydrogel, can solve problems such as the impact of energy storage capacity, and achieve improved conductivity, The effect of excellent self-healing performance and excellent electrical conductivity

Inactive Publication Date: 2017-06-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, once the supercapacitor is damaged, its

Method used

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  • Preparation method of PNAGA/PANI self-repairing conductive hydrogel
  • Preparation method of PNAGA/PANI self-repairing conductive hydrogel

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[0021] Implementation case 1

[0022] Step 1: Add glycinamide hydrochloride (0.095 mol) into a three-necked flask equipped with mechanical stirring and placed in an ice bath, vent nitrogen, add 10 ml of ice water, and stir until completely dissolved. 40ml ice ether and 55ml ice 2mol·L -1 K 2 CO 3 The solution was successively added to the flask, 0.10 mol of acryloyl chloride was dissolved in 40 ml of ether, and added dropwise to a three-necked flask under stirring at 500 rpm, and then reacted at room temperature for 2 hours. Adjust the pH of the solution to 2 with 6M HCl solution. After removing the organic phase, wash the aqueous solution with ether three times, remove the color of the solution with charcoal, filter, and remove the remaining ether by rotary evaporation at 20°C. Then use 2M NaOH solution to adjust the pH of the solution. Adjust to neutral, freeze-dry to obtain crude product, wash with ethanol / methanol (4 / 1, v / v) solution three times, and obtain NAGA after solvent...

Example Embodiment

[0025] Implementation case 2

[0026] Step 1: Add glycinamide hydrochloride (0.095 mol) into a three-necked flask equipped with mechanical stirring and placed in an ice bath, vent nitrogen, add 10 ml of ice water, and stir until completely dissolved. 40ml ice ether and 55ml ice 2mol·L -1 K 2 CO 3 The solution was added to the flask one after the other, 0.105 mol of acryloyl chloride was dissolved in 40 ml of ether, and added dropwise to a three-neck flask under stirring at 500 rpm, and then reacted at room temperature for 2 hours. Adjust the pH of the solution to 2 with 6M HCl solution. After removing the organic phase, wash the aqueous solution with ether three times, remove the color of the solution with charcoal, filter, and remove the remaining ether by rotary evaporation at 20°C. Then use 2M NaOH solution to adjust the pH of the solution. Adjust to neutral, freeze-dry to obtain crude product, wash with ethanol / methanol (4 / 1, v / v) solution three times, and obtain NAGA after s...

Example Embodiment

[0029] Implementation case 3

[0030] Step 1: Add glycinamide hydrochloride (0.095 mol) into a three-necked flask equipped with mechanical stirring and placed in an ice bath, vent nitrogen, add 10 ml of ice water, and stir until completely dissolved. 40ml ice ether and 55ml ice 2mol·L -1 K 2 CO 3 The solution was successively added to the flask, 0.10 mol of acryloyl chloride was dissolved in 40 ml of ether, and added dropwise to a three-necked flask under stirring at 500 rpm, and then reacted at room temperature for 2 hours. Adjust the pH of the solution to 2 with 6M HCl solution. After removing the organic phase, wash the aqueous solution with ether three times, remove the color of the solution with charcoal, filter, and remove the remaining ether by rotary evaporation at 20°C. Then use 2M NaOH solution to adjust the pH of the solution. Adjust to neutral, freeze-dry to obtain crude product, wash with ethanol / methanol (5 / 1, v / v) solution three times, and obtain NAGA after solvent...

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Abstract

The invention discloses a preparation method of PNAGA/PANI self-repairing conductive hydrogel, belonging to the technical field of high polymer materials. The PNAGA/PANI self-repairing conductive hydrogel is prepared by the following steps: firstly synthesizing monomer N-acryloyl glycinamide, named as NAGA, and preparing a series of self-repairing hydrogel with different concentrations through photopolymerization; carrying out in-situ polymerization on aniline (ANI) in the self-repairing hydrogel, so as to prepare the self-repairing conductive hydrogel. Compared with other hydrogel, the PNAGA/PANI hydrogel not only has self-repairing or self-healing capacity, but also simultaneously has self-repairing or self-healing capacity and conductivity; and furthermore, the self-repairing performance of the hydrogel is influenced by the concentration of PNAGA, and the self-repairing degree of the hydrogel reaches the highest value along with the increase of the concentration of PNAGA. The self-repairing conductive hydrogel prepared by virtue of the preparation method is hopefully applied to flexible supercapacitors with the self-healing capacity.

Description

technical field [0001] The invention relates to a preparation method of a self-repairing conductive hydrogel, in particular to a preparation method of a PNAGA / PANI self-repairing conductive hydrogel, belonging to the field of polymer materials. Background technique [0002] Supercapacitor is a powerful energy storage device, which can alleviate the current environmental pollution and energy shortage problems to a certain extent, so it has attracted widespread attention. The chemical properties of supercapacitors are affected by many factors such as electrode materials, electrolytes, diaphragms, packaging technologies, etc. At present, the factors that affect their performance have been systematically studied at home and abroad. The study found that the electrodes and electrolyte of supercapacitors play a decisive role in its electrochemical performance. Therefore, electrode materials and devices for supercapacitors, including electrode materials for electric double layer ca...

Claims

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Application Information

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IPC IPC(8): C08J3/075C08L35/00C08L79/02C08F122/38C08G73/02
CPCC08J3/075C08F122/38C08G73/0266C08J2335/00C08J2479/02C08L35/00C08L2203/20C08L79/02
Inventor 李雅瑜叶瑾石畅施冬健孔思予章朱迎陈明清
Owner JIANGNAN UNIV
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