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High dielectric constant composition and its preparing method and use

A high dielectric constant, polymer technology, applied in the field of high dielectric constant polyquinone radical polymers or their derivatives-polymer composites, can solve the problem of poor dispersion, material breakdown, and reduce the use range of materials, etc. problem, to achieve the effect of easy processing and stable processing

Inactive Publication Date: 2006-08-23
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the dispersion of PAQR filler particles in the polymer matrix is ​​poor, then these particles are easy to contact each other to form a leakage path, and the formed material is easily broken down by a strong electric field, reducing the use range of the material

Method used

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  • High dielectric constant composition and its preparing method and use
  • High dielectric constant composition and its preparing method and use
  • High dielectric constant composition and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The synthesis of embodiment 1, polyoxyquinone radical polymer (PAQR)

[0036] Anthraquinone and pyromellitic anhydride (molar ratio 1:1), appropriate amount of zinc chloride (molar ratio to monomer 1:1) are mixed and ground evenly, put into heat-resistant glassware, wrap evenly with aluminum foil, put Put into a heating furnace and react at 300°C for 48 hours. The resulting solid was wrapped with filter paper and placed into a Soxhlet extractor, and extracted with dilute hydrochloric acid, ethanol, and xylene for 24 hours to remove unreacted reactants and catalysts. The dried product was taken out. Its infrared spectrum is shown in Figure 1a .

Embodiment 2

[0037] Embodiment 2, the synthesis of hydroxylated quinone radical polymer (abbreviated HO-PAQR)

[0038] The anthraquinone in Example 1 was changed to 1, 8-dihydroxyanthraquinone, and the rest of the steps were the same as in Example 1, and finally a hydroxylated polyoxyquinone free radical polymer was obtained. Its infrared spectrum is shown in Figure 1b .

Embodiment 3

[0039] Embodiment 3, the synthesis of methoxy polyoxyquinone free radical polymer

[0040] A blend of 1,4-dimethoxyanthraquinone and pyromellitic anhydride (molar ratio 1:1), an appropriate amount of anhydrous aluminum trichloride (molar ratio to monomer 1:2) was dissolved in nitro Benzene solvent (mass concentration 5%), put into four-necked bottle. Install a reflux condenser and pass nitrogen gas, first mechanically stir for about 4 hours to dissolve the mixture, and then reflux at 210°C for 48 hours until no HCl gas is released. The excess nitrobenzene was distilled off under reduced pressure and the solid in the flask was transferred out, the remaining nitrobenzene was washed away with methanol, filtered with suction and dried in the air. Wrap the dried solid with filter paper and put it into a Soxhlet extractor, extract it with dilute hydrochloric acid, ethanol, xylene, and methanol for 24 hours to remove unreacted aluminum trichloride and reactants, and take out the dri...

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PUM

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Abstract

The high dielectric constant composite material includes at least one of PAQR or its derivative as the high dielectric constant stuffing in 10-80 wt% and at least one kind of polymer material as the basic material in 20-90 wt%. The high dielectric constant composite material has high stability, good machining performance, and dielectric constant as high as 30,000, and may be used in superhigh capacity capacitor, computer chip, micro electromechanical system, simulating device, natural energy source utilization, and other fields.

Description

technical field [0001] The present invention relates to a high dielectric constant polyoxyquinone free radical polymer or its derivative-macromolecular compound and its preparation method and application. Background technique [0002] Poly Acene Quinone Radical Polymer (PAQR) is a unique semiconductor material, which has a highly conjugated graphite-like structure and contains latent current carriers in the form of free radicals or free radical ions sub (10 18-19 / cm 3 ); the long-range motion of electrons (delocalization effect or wandering polarization) endows PAQRs with special electrical properties, which have attracted great attention. PAQR has good chemical stability and usually does not undergo chemical reactions. [0003] U.S. Patent No. 3,469,441 utilizes the characteristic that PAQR solid resistance varies greatly (approximately or more than 10 times) with pressure (strain) to prepare a high-sensitivity pressure or strain sensor. Chinese patent CN1253229A adopt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L101/02C08L29/04
Inventor 沈群东朱丹张娟阎青
Owner NANJING UNIV
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