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Novel Conjugated Microporous Organic Polymers and Their Synthesis and Applications

A compound and reaction technology, applied in the field of poly[1,3,5-tritriazine] conjugated microporous organic polymer materials and their synthesis, can solve problems such as lack of reports, and achieve no attenuation and improvement of discharge specific capacity. Electron transport performance, the effect of improving the charging and discharging voltage platform

Active Publication Date: 2020-05-26
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are relatively few reports on the application of porous organic polymers discovered so far in lithium-ion battery cathode materials. Therefore, the development of more porous organic polymer batteries with high energy density is the main goal at this stage.

Method used

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  • Novel Conjugated Microporous Organic Polymers and Their Synthesis and Applications
  • Novel Conjugated Microporous Organic Polymers and Their Synthesis and Applications
  • Novel Conjugated Microporous Organic Polymers and Their Synthesis and Applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1: Poly[1,3,5-tris(4-dianilinophenyl)triazine]

[0053] Synthesis of 4-dianilinobenzonitrile: Add sodium hydride (1.5g) to a 250mL three-necked flask that has been washed and dried in advance, then add 50mL of anhydrous N, N-dimethylformamide (DMF), and stir thoroughly Dissolution, a large number of bubbles will be generated during the dissolution process. After no bubbles are generated, add diphenylamine (5.1g) and slowly raise the temperature to 110°C, the reaction solution turns green tea green, then slowly add p-fluorobenzonitrile (4.5g), the reaction solution immediately turns dark red, react for 12h reached the end of the reaction. The reaction crude product was washed several times with dichloromethane and water, extracted and dried over anhydrous magnesium sulfate, and filtered. The extract was desolventized by a rotary evaporator, and separated and purified by column chromatography to finally obtain 4.98 g of 4-dianilinobenzonitrile with a yield of 61...

Embodiment 2

[0061] The synthesis of 1,3,5-tris(4-dianilinophenyl)triazine monomer is the same as in Example 1.

[0062] Synthesis of poly[1,3,5-tris(4-dianilinophenyl)triazine] (PDAPTz): Dissolve 0.5g of monomer in 30ml of chloroform, slowly add an oxidizing agent with a molar mass 4.5 times that of the monomer without Ferric Chloride Powder. The reaction was carried out at 60°C for 12h under the protection of nitrogen. After the reaction, a large amount of methanol was added to precipitate the product, and then filtered. The filter cake was alternately washed three times with methanol and water, and the obtained filter cake was vacuum-dried at 60° C. for 24 h. The product was obtained as a yellow solid powder.

Embodiment 3

[0064] The synthesis of 1,3,5-tris(4-dianilinophenyl)triazine monomer is the same as in Example 1.

[0065] Synthesis of poly[1,3,5-tris(4-dianilinophenyl)triazine] (PDAPTz): Dissolve 0.5g of monomer in 30ml of chloroform, slowly add an oxidizing agent with a molar mass 4.5 times that of the monomer without Ferric Chloride Powder. The reaction was carried out at 20°C for 48h under the protection of nitrogen. After the reaction, a large amount of methanol was added to precipitate the product, and then filtered. The filter cake was alternately washed three times with methanol and water, and the obtained filter cake was vacuum-dried at 60° C. for 24 h. The product was obtained as a yellow solid powder.

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Abstract

The invention provides poly[1,3,5-tri(4-diphenylaminophenyl)triazine] and a preparation method and an application thereof and has a structural formula defined as a formula (I). poly[1,3,5-tri(4-diphenylaminophenyl)triazine] monomers are dissolved in chloroform; anhydrous ferric chloride as an oxidizing agent is added and a full reaction is produced for 10-100 h under nitrogen protection at a temperature of 20 to 60 DEG C; after the reaction is completed, methanol is added to make products precipitate, and filtration is performed; and vacuum drying is performed to prepare the poly[1,3,5-tri(4-diphenylamine phenyl)triazine] represented by the formula (I). The invention also provides the application of the poly[1,3,5-tri(4-diphenylaminophenyl)triazine] as positive pole materials for lithium ion cells. In the poly[1,3,5-tri(4-diphenylaminophenyl)triazine] and the preparation method and the application thereof, novel conjugated high polymer material with a certain degree of porosity and a three-dimensional network structure is constructed, the electronic transmission performance of the anode materials is improved, and compared with the utilization of other materials, the lithium ion cells utilize the poly[1,3,5-tri(4-diphenylaminophenyl)triazine] as the positive pole materials, so that the lithium ion cells prepared by the poly[1,3,5-tri(4-diphenylaminophenyl)triazine] have characteristics of superior cycling stability, a substantial charge-discharge voltage platform and high charge-discharge specific capacity.

Description

technical field [0001] The invention relates to a poly[1,3,5-tris(4-dianilinophenyl)triazine] (PTDAPTz for short) conjugated microporous organic polymer material and a synthesis method thereof. The polymer synthesized by this method can be It is used in the positive electrode material of lithium ion battery. Background technique [0002] The International Institute of Purity and Applied Sciences (IUPAC) divides porous materials into three categories according to the pore size: materials with a pore size smaller than 2 nm are microporous materials, materials with a pore size between 2 nm and 50 nm are mesoporous materials, and materials with a pore size above 50 nm. for macroporous materials. Porous organic polymers are a new type of polymeric porous materials with microporous or mesoporous structures formed by organic structural units connected by covalent bonds. In recent years, due to its high specific surface area, it is easy to modify the skeleton structure and channel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12H01M4/60H01M10/0525
CPCC08G61/122C08G2261/11C08G2261/1434C08G2261/18C08G2261/344C08G2261/514H01M4/608H01M10/0525Y02E60/10
Inventor 张诚陈章新苏畅朱晓刚沈俊杰
Owner ZHEJIANG UNIV OF TECH
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