Preparation method and application of polypyrrole/poly-zwitterionic conductive hydrogel

A polyzwitterion, conductive hydrogel technology, applied in electromagnetic measurement devices, electric/magnetic solid deformation measurement and other directions, can solve the problems of complex production process by soaking method, achieve green environmental protection of raw materials, wide application scenarios, large stretching rate effect

Active Publication Date: 2022-04-22
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problem of complex manufacturing process by soaking method, and expands the application scenarios of conductive polymer hydrogel

Method used

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  • Preparation method and application of polypyrrole/poly-zwitterionic conductive hydrogel
  • Preparation method and application of polypyrrole/poly-zwitterionic conductive hydrogel
  • Preparation method and application of polypyrrole/poly-zwitterionic conductive hydrogel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Dissolve 800mg [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfonic acid propyl)ammonium hydroxide in 1118μL deionized water and stir until completely dissolved, then add 6mgN,N - Methylenebisacrylamide, 16mg2959 photoinitiator ultrasonic cleaning to disperse in the solution, then add 33mg 50% phytic acid solution and 10mg pyrrole monomer, mix thoroughly and store in a refrigerator at 4°C.

[0037] 2) Add 16.9 mg of 30% hydrogen peroxide to the solution when in use, and mix thoroughly to obtain a hydrogel precursor.

[0038] 3) Pour the hydrogel precursor solution into a mold with a groove of 10mm×40mm×3mm, cover with a glass sheet to isolate oxygen, put it into a 4°C low-temperature storage box for 12 hours after being exposed to ultraviolet light for 15 minutes, and obtain Polypyrrole / Polyzwitterionic Conductive Hydrogel.

Embodiment 2

[0040] 1) Dissolve 800mg [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfonic acid propyl)ammonium hydroxide in 1058μL deionized water and stir until completely dissolved, then add 6mgN,N - Methylenebisacrylamide, 16mg2959 photoinitiator ultrasonic cleaning to disperse in the solution, then add 66mg 50% phytic acid solution and 20mg pyrrole monomer, mix thoroughly and store in a refrigerator at 4°C.

[0041] 2) Add 33.8 mg of 30% hydrogen peroxide to the solution when used, and mix thoroughly to obtain a hydrogel precursor.

[0042] 3) Pour the hydrogel precursor solution into a mold with a groove of 10mm×40mm×3mm, cover with a glass sheet to isolate oxygen, put it into a 4°C low-temperature storage box for 12 hours after being exposed to ultraviolet light for 15 minutes, and obtain Polypyrrole / Polyzwitterionic Conductive Hydrogel.

Embodiment 3

[0044] 1) Dissolve 800mg [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfonic acid propyl)ammonium hydroxide in 998μL deionized water and stir until completely dissolved, then add 6mgN,N - Methylenebisacrylamide, 16mg2959 photoinitiator ultrasonic cleaning to disperse in the solution, then add 99mg 50% phytic acid solution and 30mg pyrrole monomer, mix well and store in a refrigerator at 4°C.

[0045] 2) Add 50.7 mg of 30% hydrogen peroxide to the solution during use, and mix thoroughly to obtain a hydrogel precursor.

[0046] 3) Pour the hydrogel precursor solution into a mold with a groove of 10mm×40mm×3mm, cover with a glass sheet to isolate oxygen, put it into a 4°C low-temperature storage box for 12 hours after being exposed to ultraviolet light for 15 minutes, and obtain Polypyrrole / Polyzwitterionic Conductive Hydrogel.

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Abstract

The invention discloses a preparation method and application of polypyrrole/poly zwitter-ion conductive hydrogel, and the preparation method comprises the following steps: dissolving [2-(methylacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide, a cross-linking agent, a photoinitiator, a pyrrole monomer, doped acid and an oxidizing agent in water by adopting a one-pot method to obtain a hydrogel precursor solution; and curing the hydrogel by ultraviolet irradiation, and standing at low temperature until the polypyrrole grows along the PSBMA hydrogel network to obtain the conductive polymer network. The hydrogel disclosed by the invention shows excellent electrical properties and mechanical properties. In addition, the preparation process is safe, simple and convenient. Wide application prospects are realized in the fields of wearable sensors, flexible bioelectric electrodes and the like.

Description

technical field [0001] The invention belongs to the technical field of intelligent materials, and relates to a preparation method and application of polypyrrole / polyzwitterion conductive hydrogel. [0002] technical background [0003] With the continuous awakening of people's health awareness and the continuous development of the field of smart materials, the development of medical sensors has two trends of ultra-high precision, specialization, low cost, and portability, that is, the market's demand for large-scale medical sensors. At the same time, the demand for portable sensors that are convenient for daily use is also expanding. As a new type of portable sensor, wearable sensors can not only perform real-time non-destructive testing, but also avoid the problems of bulky and poor comfort of traditional medical sensors. [0004] For wearable flexible sensors, biocompatibility, electrical properties, and mechanical properties are important evaluation indicators. How to imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/075C08L33/14C08L79/04C08G73/06C08F220/38C08F222/38C08F2/48G01B7/16
CPCC08J3/075G01B7/18C08G73/0611C08F220/382C08F2/48C08J2333/14C08J2479/04C08F222/385Y02E60/13
Inventor 张航与刘佳昊刘波吕军
Owner DALIAN UNIV OF TECH
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