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Sulfonic-group-doped microporous polyphenyl/polypyrrole composite material, preparation method and application thereof

A composite material and sulfonic acid-based technology, applied in the fields of magnetic/electric field shielding, electrical components, etc., can solve the problems of limited application fields, poor conductivity of conjugated microporous polymers, etc., to achieve enhanced electromagnetic properties, excellent electrical conductivity, Effect of Excellent Interfacial Polarization Loss

Active Publication Date: 2021-12-28
绍兴道普新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art, the present invention provides a method for preparing a sulfonic acid group-doped microporous polyphenylene / polypyrrole composite material, which enhances the binding effect of polypyrrole and conjugated microporous polymer through sulfonic acid doping and guides Controlled polymerization of polypyrrole to achieve excellent electromagnetic wave absorption performance, with the advantages of "thin, light, wide and strong", while solving the problem of limited application fields due to the poor conductivity of conjugated microporous polymers

Method used

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  • Sulfonic-group-doped microporous polyphenyl/polypyrrole composite material, preparation method and application thereof
  • Sulfonic-group-doped microporous polyphenyl/polypyrrole composite material, preparation method and application thereof
  • Sulfonic-group-doped microporous polyphenyl/polypyrrole composite material, preparation method and application thereof

Examples

Experimental program
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Embodiment 1

[0031] A sulfonic acid group-doped microporous polyphenylene / polypyrrole composite material, comprising:

[0032] (1) Preparation of conjugated microporous polyphenylene

[0033] 1,3,5-Tris(4-bromophenyl)benzene (1.09 g, 2.0 mmol) and 1,4-benzenediboronic acid (0.50 g, 3.0 mmol) were added to a tank containing DMF (50 mL), K 2 CO 3 Aqueous solution (10mL, 2.0mol / L) and Pd(PPh 3 ) 4 (20mg) in a flask. Under vigorous stirring, use N 2 After degassing for 15 minutes, the resulting system was transferred to an oil bath and heated to 150 °C for 48 h. Cool and pour into water after the reaction. The resulting mixture was filtered and washed with H 2 O, C 2 h 5 OH and CH 2 Cl 2 Washing, Soxhlet extraction with tetrahydrofuran, drying to obtain gray conjugated microporous polyphenylene, denoted as MPP.

[0034] (2) Preparation of sulfonic acid group-doped microporous polyphenylene

[0035] 1 g of conjugated microporous polyphenylene was dispersed in dichloromethane, and 1...

Embodiment 2

[0039] The preparation method of the sulfonic acid group-doped microporous polyphenylene / polypyrrole composite material described in this example is the same as that in Example 1, except that the dosage of pyrrole in step 3 is adjusted to 200 mg. Finally, a sulfonic acid group-doped microporous polyphenylene / polypyrrole composite material is obtained, which is designated as SP-2.

Embodiment 3

[0041] The preparation method of the sulfonic acid group-doped microporous polyphenylene / polypyrrole composite material described in this example is the same as that in Example 1, except that the dosage of pyrrole in step 3 is adjusted to 500 mg, and the polymerization reaction time is adjusted to 6 hours. Finally, a sulfonic acid group-doped microporous polyphenylene / polypyrrole composite material was obtained, which was designated as SP-3.

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Abstract

The invention belongs to the technical field of electromagnetic wave absorption, and particularly relates to a sulfonic-group-doped microporous polyphenyl / polypyrrole composite material, a preparation method and application thereof. The preparation method includes the steps that conjugated microporous polyphenyl is prepared through Suzuki reaction, a sulfonic group is doped into the microporous polyphenyl structure through chlorosulfonic acid treatment, and then polypyrrole grows by using the structure as a template to construct the sulfonic-group-doped microporous polyphenyl / polypyrrole composite material with a unique network structure. The composite material has excellent conductivity and multiple loss paths, realizes excellent electromagnetic wave absorption performance, has the characteristics of being thin, light, wide and strong, and meets the application requirements in the field of electromagnetic wave absorption at present.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic wave absorption, and specifically relates to a sulfonic acid group-doped microporous polyphenylene / polypyrrole composite material and its preparation method and application. Background technique [0002] With the rapid development of modern electronic technology and the widespread use of electronic equipment, electromagnetic pollution and interference have become increasingly serious problems and have attracted strong attention. In order to eliminate the adverse effects of electromagnetic radiation, researchers are working on constructing efficient and stable electromagnetic wave absorbing materials. Absorbing materials can absorb electromagnetic waves and convert them into heat and other energy forms. So far, there is an urgent need in the market to develop electromagnetic wave absorbing materials with light weight, flexibility, thin layer and excellent electromagnetic absorption propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04C08L65/00C08K3/30C08G73/06C08G61/10H05K9/00
CPCC08L79/04C08L65/00C08G73/0611C08G61/10H05K9/0081C08G2261/312C08G2261/18C08K3/30
Inventor 谢阿明陈佑剑焦颖芝
Owner 绍兴道普新材料科技有限公司