Preparation method of high-dispersity silk fibroin-chitosan-3-methylimidazole salt hexylthiophene-multiwalled carbon nanotube gel

A technology of multi-walled carbon nanotubes and methyl imidazolium salt, which is applied in the field of functional materials, can solve problems such as limitations in the scope of application, and achieve the effects of stable dispersion, high water solubility, and no toxic side effects

Inactive Publication Date: 2019-06-14
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon nanotubes are special functional materials with highly delocalized large Π bonds, but carbon nanotubes are almost insoluble in all solvents, which greatly limits its scope of application.

Method used

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  • Preparation method of high-dispersity silk fibroin-chitosan-3-methylimidazole salt hexylthiophene-multiwalled carbon nanotube gel
  • Preparation method of high-dispersity silk fibroin-chitosan-3-methylimidazole salt hexylthiophene-multiwalled carbon nanotube gel
  • Preparation method of high-dispersity silk fibroin-chitosan-3-methylimidazole salt hexylthiophene-multiwalled carbon nanotube gel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1) Measure 10 mg of acidified multi-walled carbon nanotubes in 20 ml of deionized water for 30 minutes to disperse completely. Methylaminopropyl) carbodiimide hydrochloride (0.1 mmol) 10 ml, after stirring for 10 min, slowly add 10 ml N-hydroxysuccinimide (0.1 mmol) dropwise, and react for 30 min.

[0040] 2) Prepare 3-methylimidazolium hexylthiophene by a two-step method. Dissolve 20 mg of the prepared 3-methylimidazolium hexylthiophene in 20 ml deionized water, heat and ultrasonicate at 40°C for 30 minutes to dissolve completely.

[0041] 3) Add 10mg of chitosan to 10ml of deionized water, add 1% acetic acid, and sonicate for 30min until completely dissolved.

[0042] 4) Slowly add the chitosan solution obtained above into the dispersion obtained in step 1) drop by drop, and react for 24 h.

[0043] 5) Measure 20 ml of ultrasonicated 3-methylimidazolium hexylthiophene and slowly add it to the solution obtained in step 4), and ultrasonicate for 30 minutes to make it c...

Embodiment 2

[0051] 1) Measure 15 mg of acidified multi-walled carbon nanotubes in 20 ml of deionized water for 30 minutes until the dispersion is complete. After the ultrasound is completed, place the solution on a magnetic stirrer and slowly add 1-ethyl-(3-di Methylaminopropyl) carbodiimide hydrochloride (0.1 mmol) 10 ml, after stirring for 10 min, slowly add 10 ml of N-hydroxysuccinimide (0.1 mmol) dropwise, and react for 30 min.

[0052] 2) Prepare 3-methylimidazolium hexylthiophene by a two-step method. Dissolve 30 mg of 3-methylimidazolium hexylthiophene in 20 ml of deionized water, heat and sonicate at 40°C for 30 minutes to dissolve completely.

[0053] 3) Add 15mg of chitosan to 10ml of deionized water, add 1% acetic acid, and sonicate for 30min until completely dissolved.

[0054] 4) Slowly add the above chitosan solution dropwise into the dispersion obtained in step 1), and react for 24 h.

[0055] 5) Slowly add 30 ml of ultrasonicated 3-methylimidazolium hexylthiophene into th...

Embodiment 3

[0063] 1) Measure 10 mg of acidified multi-walled carbon nanotubes in 20 ml of deionized water for 30 minutes to disperse completely. Methylaminopropyl) carbodiimide hydrochloride (0.1 mmol) 10 ml, after stirring for 10 min, slowly add 10 ml N-hydroxysuccinimide (0.1 mmol) dropwise, and react for 30 min.

[0064] 2) Prepare 3-methylimidazolium hexylthiophene by a two-step method. Dissolve 20 mg of 3-methylimidazolium hexylthiophene in 20 ml of deionized water, heat and sonicate at 40°C for 30 minutes to dissolve completely.

[0065] 3) Add 10mg of chitosan to 10ml of deionized water, add 1% acetic acid, and sonicate for 30min until completely dissolved.

[0066] 4) Slowly add the above chitosan solution dropwise into the dispersion obtained in step 1), and react for 24 h.

[0067] 5) Take 20ml of ultrasonicated 3-methylimidazolium hexylthiophene and slowly add it to the solution obtained in step 4), and ultrasonicate for 30 minutes to make it composite with chitosan-multi-wal...

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Abstract

The invention belongs to the field of functional material, and discloses a preparation method of a high-dispersity silk fibroin-chitosan-3-methylimidazole salt hexylthiophene-multiwalled carbon nanotube gel. According to the preparation method, the pi-pi bond effect not covalent bond effect of conjugate polyelectrolyte 3-methylimidazole salt hexylthiophene with acidified carbon nanotube surfaces is taken into utilization, so that the mutual attractive force of the modified carbon nanotube is reduced, the adhesiveness of the modified carbon nanotube is reduce, the dispersity is improved, the prepared material is high in stability and hydrophilic performance in solution, preparation speed is accelerated greatly, preparation cost is reduced, no influence on subsequent experiment steps or theperformance of particles to be prepared is caused, experiment result scientific performance is not influenced, experiment operation is simple, nontoxic, and harmless, and the preparation method is green, and is friendly to the environment.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to a preparation method of highly dispersed silk fibroin-chitosan-3-methylimidazolium salt hexylthiophene-multi-walled carbon nanotube gel. Background technique [0002] Carbon nanotubes, also known as bucky tubes, are one-dimensional quantum materials with a special structure (the radial dimension is on the order of nanometers, the axial dimension is on the order of microns, and both ends of the tube are basically sealed). Carbon nanotubes are mainly coaxial tubes with several to tens of layers of carbon atoms arranged in a hexagonal shape. Keep a fixed distance between layers, about 0.34nm, and the diameter is generally 2~20nm. And according to the different orientations of the carbon hexagon along the axial direction, it can be divided into three types: zigzag, armchair and spiral. Among them, the helical carbon nanotubes have chirality, while the zigzag and armchair carbo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L5/08C08L89/00C08K9/04C08K3/04C08J3/075
Inventor 单心怡陈博弈何宇杰朱诚王秉
Owner ZHEJIANG SCI-TECH UNIV
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