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Preparation method of rigid chain liquid crystal polymer material for hydrogen peroxide sensor

A liquid crystal polymer, hydrogen peroxide technology, applied in the field of materials, to achieve the effect of simple preparation and development, simple fixing method, effective and stable adhesion

Inactive Publication Date: 2017-11-28
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research field of synthesizing ferrocene liquid crystal polymer with redox properties and compounding with redox graphene and applying it to sensors has not been mentioned yet.

Method used

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  • Preparation method of rigid chain liquid crystal polymer material for hydrogen peroxide sensor
  • Preparation method of rigid chain liquid crystal polymer material for hydrogen peroxide sensor
  • Preparation method of rigid chain liquid crystal polymer material for hydrogen peroxide sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of rigid chain liquid crystal polymer material for hydrogen peroxide sensor, comprises the steps:

[0031] (1) The preparation method of rigid chain polymer;

[0032] Raw materials: ferrocene, n-butyllithium, ethylene oxide, anhydrous ether, concentrated hydrochloric acid, n-hexane, ethyl acetate, N,N-dimethylformamide (DMF), tetrahydrofuran (THF), dichloro Methane (DCM), petroleum ether, dicyclohexylcarbodiimide (DCC), 4-dimethylaminopyridine (DMAP), redox graphene.

[0033] Monomers containing double bonds: 2,5-bis(2-ferrocenylethyl)-vinyl terephthalate

[0034] Initiator: Azobisisobutyronitrile (AIBN)

[0035] In a clean test tube, add 2,5-bis(2-ferrocenylethyl)-vinyl terephthalate (0.21g, 0.54mmol), and use a 1ml needle to add AIBN 0.08 at a concentration of 10mg / ml ml, refined tetrahydrofuran (THF) 1ml, after three times of freezing with liquid nitrogen, vacuuming, and nitrogen circulation, seal the tube under vacuum, let it stand for 5 minutes, and place...

Embodiment 2

[0040] A kind of rigid chain liquid crystal polymer material for hydrogen peroxide sensor, comprises the steps:

[0041] (1) The preparation method of rigid chain polymer;

[0042] Raw materials: ferrocene, n-butyllithium, ethylene oxide, anhydrous ether, concentrated hydrochloric acid, n-hexane, ethyl acetate, N,N-dimethylformamide (DMF), tetrahydrofuran (THF), dichloro Methane (DCM), petroleum ether, dicyclohexylcarbodiimide (DCC), 4-dimethylaminopyridine (DMAP), redox graphene.

[0043] Monomers containing double bonds: 2,5-bis(2-ferrocenylethyl)-vinyl terephthalate

[0044] Initiator: ethyl α-bromoisobutyrate

[0045] Ligand: Pentamethyldiethylenetriamine (PMDETA)

[0046] In a clean test tube, add rigid chain monomer (0.16g, 0.41mmol), cuprous bromide (0.003g, 0.021mmol), add pentamethyldiethylenetriamine (PMDETA) (0.035g, 0.02mmol), α - Ethyl bromoisobutyrate (0.004g, 0.021mmol) and its chlorobenzene (0.48g, 5.3mmol). After three cycles of liquid nitrogen freezing, ...

Embodiment 3

[0051] A kind of rigid chain liquid crystal polymer material for hydrogen peroxide sensor, comprises the steps:

[0052] (1) The preparation method of rigid chain polymer;

[0053] Raw materials: ferrocene, n-butyllithium, ethylene oxide, anhydrous ether, concentrated hydrochloric acid, n-hexane, ethyl acetate, N,N-dimethylformamide (DMF), tetrahydrofuran (THF), dichloro Methane (DCM), petroleum ether, dicyclohexylcarbodiimide (DCC), 4-dimethylaminopyridine (DMAP), multi-walled carbon nanotubes.

[0054] Monomers containing double bonds: 2,5-bis(2-ferrocenylethyl)-vinyl terephthalate

[0055] Initiator: Azobisisobutyronitrile (AIBN)

[0056] In a clean test tube, add 2,5-bis(2-ferrocenylethyl)-vinyl terephthalate (0.21g, 0.54mmol), and use a 1ml needle to add AIBN 0.08 at a concentration of 10mg / ml ml, refined tetrahydrofuran (THF) 1ml, after three times of freezing with liquid nitrogen, vacuuming, and nitrogen circulation, seal the tube under vacuum, let it stand for 5 min...

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PUM

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Abstract

The invention discloses a preparation method of a rigid chain liquid crystal polymer material used for a hydrogen peroxide sensor. The monomer containing ferrocene group is subjected to active polymerization to obtain a rigid chain polymer, and the compound material based on the rigid chain polymer of the present invention is prepared by compounding it with redox graphene. The invention uses a simple and effective method, and the preparation method is simple, and the obtained composite material can efficiently detect the hydrogen peroxide content in the solution, has a wide detection range and high sensitivity, can be applied to some production and life aspects, and greatly simplifies the detection of hydrogen peroxide. The detection process expands the application range of rigid chain polymers and provides a simple and convenient way for the industrial production of hydrogen peroxide sensors in the future.

Description

technical field [0001] The invention discloses a novel method for preparing a hydrogen peroxide sensor of a rigid chain polymer composite material, belonging to the technical field of materials. Background technique [0002] The content of hydrogen peroxide in food, medicine, and natural environment is closely related to human health, and its excessive existence will often cause a certain degree of damage to the human body. At the same time, the concentration range of hydrogen peroxide in human urine is also an inspection standard for judging human health. Therefore, the detection of hydrogen peroxide is very important, and at the same time, the research and development of new hydrogen peroxide sensors is also very important. [0003] Because of its unique sandwich structure, ferrocene has the characteristics of aromaticity, high charge density, thermal stability and redox reversibility, it has been attracting much attention in the research of transition metal organics. In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F130/04C09K19/38G01N33/00
Inventor 谢鹤楼杨亚琦唐军陶磊范遥见张海良
Owner XIANGTAN UNIV