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Soluble aliphatic chain-containing polyimide with adjustable information memory performance

A chain polyimide and information storage technology, applied in the field of polyimide, to achieve stable storage performance, fast response speed, and highlight the effect of electric bistable information storage performance

Active Publication Date: 2016-11-23
HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The diamine containing electron donor carbazole and aliphatic chain structure and the polyimide containing aliphatic chain with adjustable storage properties synthesized in the present invention have not been reported yet

Method used

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  • Soluble aliphatic chain-containing polyimide with adjustable information memory performance
  • Soluble aliphatic chain-containing polyimide with adjustable information memory performance
  • Soluble aliphatic chain-containing polyimide with adjustable information memory performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Preparation of DATP2Cz:

[0048] Under the protection of nitrogen atmosphere, add 2.1027g (10mmol) of 2-carbazolylethylamine, 3.2453g (23mmol) of p-nitrofluorobenzene, 3.45g of potassium carbonate, and 30ml of dimethyl sulfoxide into a 100ml three-necked flask. After sealing, turn on magnetic stirring and heating, and set the temperature to 145°C. Stop stirring and heating after magnetic stirring for 48 hours. The solution in the three-neck flask was poured into ice methanol to obtain a dark yellow solid, and the obtained solid was washed with deionized water and ice methanol for several times. After filtration, the solid was dried in a vacuum oven for 12 hours to obtain a dark yellow powder. Take 2.2623g of the dark yellow powder and put it in a 100ml three-necked flask, then add 0.5315g of palladium-carbon catalyst and 50ml of ethanol successively, turn on magnetic stirring and heating, set the temperature to 90℃, when the ethanol starts to reflux, use a separatory funn...

Embodiment 2

[0051] Preparation of DATP6Cz:

[0052] Under nitrogen atmosphere, add 2.6638g (10mmol) of 6-carbazolylhexylamine, 3.2453g (23mmol) of p-nitrofluorobenzene, 3.44g of potassium carbonate, and 30ml of dimethylsulfoxide into a 100ml three-necked flask, and seal the system. Then turn on magnetic stirring and heating, and set the temperature to 145°C. Stop stirring and heating after magnetic stirring for 48 hours. The solution in the three-neck flask was poured into ice methanol to obtain a dark yellow solid, and the obtained solid was washed with deionized water and ice methanol for several times. After filtration, the solid was dried in a vacuum oven for 12 hours to obtain a dark yellow powder. Take 2.0343g of the dark yellow powder into a 100ml three-necked flask, then add 0.4260g of palladium-carbon catalyst and 40ml of ethanol successively, turn on magnetic stirring and heating, set the temperature to 90℃, and when the ethanol starts to reflux, use a separatory funnel for 10 sec...

Embodiment 3

[0055] Preparation of DATP2Cz-6FDA system polyimide:

[0056] Under the protection of nitrogen atmosphere, add DATP2Cz 0.3925g, 6FDA 0.4442g and m-cresol 7.3ml (solid content about 10%) into a 25ml three-necked flask, set the oil bath temperature to 30°C, turn on magnetic stirring and heating. After 4 hours of reaction, under the protection of a nitrogen atmosphere, 1 ml of isoquinoline was added to the three-necked flask, and the temperature was set to 190° C. After the reaction was continued for 12 hours, the heating and stirring were stopped. Pour the solution in the flask into ice methanol, and a yellow precipitate will be generated. Filter, soak the precipitate in methanol for 24 hours and then filter, and vacuum dry for 12 hours to obtain DATP2Cz-6FDA system polyimide.

[0057] Infrared (KBr tablet): 1780cm -1 (C=O asymmetric stretching vibration peak), 1725cm -1 (C=O symmetrical stretching vibration peak), 1371cm -1 (C-N stretching vibration peak), 750cm -1 (C-N-C stretching...

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Abstract

The invention discloses soluble aliphatic chain-containing polyimide with adjustable information memory performance, and belongs to the field of organic information memory materials. The soluble aliphatic chain-containing polyimide is characterized in that two kinds of diamine with electronic property are compounded at first, the two kinds of diamine contain aliphatic chains in different lengths, and then the two kinds of diamine are respectively in polycondensation with dicarboxylic anhydride with electron acceptor property, so that the soluble aliphatic chain-containing polyimide with the soluble aliphatic chain-containing polyimide is prepared, and the structure of the soluble aliphatic chain-containing polyimide is as shown in a formula (I) shown in the description. The soluble aliphatic chain-containing polyimide disclosed by the invention has the advantages of stable memory performance and fast response speed, and an information memory behavior of a material can be controlled by changing the length of the aliphatic chains or the variety of the diamines; the soluble aliphatic chain-containing polyimide has good solubility and is beneficial for processing of the material and preparation of memory devices; meanwhile, a compounding method of the soluble aliphatic chain-containing polyimide is simple, the yield is high, device preparation is simple and easy, the efficiency is high, and a wide application prospect in the field of information memory materials are obtained.

Description

Technical field [0001] The invention belongs to the field of organic information storage materials, and particularly relates to a soluble fatty chain-containing polyimide with adjustable information storage performance. Background technique [0002] The 21st century is the era of information technology. The explosive growth of information has led to the development of miniaturization and high density of electronic devices. The size of the information storage element gradually transitions from the micron level to the nanometer level. At this stage, the most widely used semiconductor material has reached its application limit in terms of the line width of the device and the size of the storage point. Therefore, how to develop new materials that can be used in the field of ultra-high-density information storage and how to prepare information storage devices with ultra-high density and ultra-fast response speed have become key issues that need to be solved urgently. [0003] Organic / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/10H01L51/30
CPCC08G73/1007C08G73/1039C08G73/1064C08G73/1067C08G73/1085H10K85/111
Inventor 齐胜利贾南方田国峰汪晓东武德珍
Owner HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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