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Polymeric / carbon nano-tube composite flash memory material with side chain containing carbazole, synthetic method and use

A carbon nanotube composite and carbon nanotube technology, which is applied in the fields of information and new materials, can solve problems such as unsatisfactory charge transfer, and achieve the effects of improving microscopic compatibility, improving overall performance, and increasing the switching current ratio

Inactive Publication Date: 2009-04-22
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the characteristics of the polymer itself, the charge transfer is not very ideal. At present, the polymer information storage device is still in the exploratory stage.

Method used

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  • Polymeric / carbon nano-tube composite flash memory material with side chain containing carbazole, synthetic method and use
  • Polymeric / carbon nano-tube composite flash memory material with side chain containing carbazole, synthetic method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The synthetic method of the macromolecule / carbon nanotube composite flash memory material that side chain contains carbazole, it comprises the steps:

[0035] 1) Treat 10 g of multi-walled carbon nanotube raw material with 100 mL of concentrated sulfuric acid at 80° C. for 24 hours under reflux, and suction filter with deionized water to wash and dry to obtain 7.1 g of acidified carbon nanotubes;

[0036] 2) Add 200 mL of thionyl chloride to 7.1 g of acidified carbon nanotubes, react at 70°C for 24 hours, wash with suction filtration with tetrahydrofuran, and dry to obtain 6.9 g of acylated carbon nanotubes;

[0037] 3) 6.9g of acylated carbon nanotubes were reacted with 150mL of ethylenediamine at 100°C for 48h, suction filtered and washed with tetrahydrofuran, washed and dried to obtain 5.6g of carbon nanotubes with amine groups on the surface;

[0038] 4) Disperse 5.6g of carbon nanotubes with amine groups on the surface and 4.2g (23.38mmol) of triethylamine in 150mL...

Embodiment 2

[0044] The solvent methylene chloride was substituted for toluene, and the others were the same as in Example 1 to obtain 1.28 g of a black composite flash memory material, which corresponds to a graft copolymerization rate of 56% with carbon nanotubes.

Embodiment 3

[0046] The solvent nitromethane was substituted for toluene, and the others were the same as in Example 1 to obtain 1.24 g of a black composite flash memory material, which is equivalent to a graft copolymerization rate of 48% with carbon nanotubes.

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Abstract

The invention relates to a macromolecular / carbon nanotube composite flash memory material, a synthesis method thereof and application of the macromolecular / carbon nano tube composite flash memory material. The macromolecular / carbon nanotube composite flash memory material the side chains of which contain carbazole is characterized in that the macromolecular / carbon nanotube composite flash memory material has a chemical structure of a general formula on the right, wherein R is a carbon nanotube, X is Cl or Br, and n is between 20 and 200. The composite flash memory material has lower cut-in voltage and higher switched current ratio.

Description

technical field [0001] The invention relates to a class of polymer / carbon nanotube composite flash memory material, its synthesis method and application, which can be applied to the fields of new materials and information technology. Background technique [0002] Materials, information technology and energy have become the three pillars of modern civilization. In the new century, the development of information technology requires ultra-high-speed ultra-high-density storage materials and devices. At present, in the field of electronic products, silicon is still an important semiconductor material, playing an almost irreplaceable role, but its cost is relatively high, and with the development of the semiconductor industry, the silicon industry is facing an insurmountable problem of nanometerization. Organic polymer materials have many advantages that cannot be replaced by inorganic substances such as silicon, such as: low density, light weight, not easy to oxidize, low cost, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F212/32G11C16/00
Inventor 李亮柯贞将鄢国平郭庆中渝湘华吴江渝程志毓杜飞鹏
Owner WUHAN INSTITUTE OF TECHNOLOGY
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