Polyamine monomer of polyimide containing triazole structure and polymer and preparation method of polyamine monomer as well as application

A polyimide and polyamine technology, which is applied in the field of hyperbranched polyimide preparation technology and information storage materials, can solve problems such as difficult processing, poor solubility, and difficult modification

Active Publication Date: 2019-07-23
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its rigid molecular skeleton and strong molecular chain stacking, linear polyimide generally has poor solubility and is difficult to process
At the same time, for linear polyimide, once the main chain structure is determined, the storage performance of the polymer is also determined, and modification is relatively difficult.

Method used

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  • Polyamine monomer of polyimide containing triazole structure and polymer and preparation method of polyamine monomer as well as application
  • Polyamine monomer of polyimide containing triazole structure and polymer and preparation method of polyamine monomer as well as application
  • Polyamine monomer of polyimide containing triazole structure and polymer and preparation method of polyamine monomer as well as application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Taking triamine monomer as an example, the preparation steps of polyamine monomer are described. The specific synthesis route and steps are as follows:

[0065]

[0066] The first step reaction: under nitrogen protection, add 120mmol (26.4g) 4-bromobenzoyl chloride to a 250mL three-necked flask, then add 120mL N-methylpyrrolidone (NMP), and place the entire reaction system in an ice-water bath , cooled to 0°C. Under the condition of mechanical stirring, add 80 mmol (3.8 mL) hydrazine hydrate into the three-necked flask with a constant pressure dropping funnel in about 30 minutes. Continue the reaction at 0°C for 60 minutes, then remove the ice-water bath, stir at room temperature at about 20-25°C, and continue the reaction for 12 hours. After the reaction is completed, the material is discharged in 1000-2000 mL of distilled water, filtered, and the filter cake is washed 3-5 times with distilled water, and then washed 2-3 times with ethyl acetate. Put the filter cak...

Embodiment 2

[0072] Taking triamine monomer and hexafluorodianhydride as examples, the synthesis of acid anhydride-terminated hyperbranched polyimide is illustrated. The specific synthesis route and steps are as follows:

[0073]

[0074] (1) Weigh 0.342g of triamine monomer and place it in a constant pressure dropping funnel, dissolve it with 8.0ml N,N-dimethylacetamide (DMAc) at room temperature; weigh 0.888g of 6FDA and add it to three Neck flask, dissolved with 10ml DMAc;

[0075] (2) Under nitrogen atmosphere and mechanical stirring conditions, the triamine monomer completely dissolved in the constant pressure funnel was slowly added into the three-necked flask dissolved in the anhydride solution within two hours, stirred at room temperature for 24 hours, and overspending Polyamic acid;

[0076] (3) Add 3ml of acetic anhydride and 1ml of pyridine to the system, keep the oil bath at a constant temperature of 80°C, and perform chemical imidization for 12 hours to obtain a hyperbranche...

Embodiment 3

[0080] In this embodiment, taking the hyperbranched polyimide obtained in Example 2 as an example, the preparation process of the storage device with the ITO / hyperbranched polyimide active layer / Al structure is described, as follows:

[0081] First, wash the ITO glass bottle with detergent water, deionized water, ultrapure water, acetone, and isopropanol under ultrasonic conditions for 25 minutes, and put the cleaned ITO glass piece in a vacuum oven at 80°C Dry for 5 hours. Weigh 20 mg of hyperbranched polyimide and dissolve it in 1 mL of anhydrous N,N-dimethylacetamide, and stir evenly. After filtering the solution with a 0.22 μm organic filter head, drop 3 to 4 drops of the solution on a clean and dry ITO glass sheet, and use a spin coater to rotate at a low speed of 200r / min for 20s to make the solution on the ITO glass. Distribute evenly on the board, then increase the rotation speed to 1000r / min, rotate for 30s, transfer to a preheated 40°C vacuum oven, dry at 40°C for 6...

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Abstract

The invention discloses a polyamine monomer of polyimide containing a triazole structure and a polymer and a preparation method of the polyamine monomer as well as application, and belongs to the fields of hyperbranched polyimide preparation technology and information storage materials. According to the polyamine monomer disclosed by the invention, a series of triamine and tetraamine monomers withdifferent electronic effects are firstly synthesized based on the triazole structure, and are respectively subjected to polycondensation with dibasic acid anhydride with different electronic effectsto obtain a series of hyperbranched polyimide with information storage performance. The hyperbranched polyimide obtained by the invention has the beneficial effects of excellent solubility and good heat stability and electrochemical properties; at the same time, as the solvent-processable hyperbranched polyimide, by preparing an indium tin oxide/hyperbranched polyimide active layer/metal storage device with a sandwich structure, a hyperbranched polyimide storage material with excellent storage performance, stable and good operation, low misreading rate and relatively low energy consumption isobtained. The invention further broadens the application range of the triazole-containing hyperbranched polyimide.

Description

technical field [0001] The invention belongs to the field of hyperbranched polyimide preparation technology and information storage materials Background technique [0002] With the development of computer, network, communication, e-commerce information technology and the continuous improvement of the performance of digital products, the complexity of data storage devices has increased accordingly. The storage capacity of traditional inorganic semiconductor materials has gradually reached the limit of their research and development. Therefore, developing an information storage space with an ultra-large capacity, an ultra-fast processing speed and an ultra-high-density storage capacity has become a goal pursued in the field of next-generation information storage technology. [0003] Polyimide refers to a class of polymers containing imide rings on the main chain of the molecule. It is one of the organic polymer materials with the best comprehensive performance. It has been wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D249/08C08G73/10
CPCC07D249/08C08G73/10C08G73/1003
Inventor 关绍巍田野关尔佳姚洪岩祝世洋
Owner JILIN UNIV
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