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Polymer microporous material and preparation method based on organic polymer network structure

A technology of network structure and microporous material, which is applied in the field of polymer microporous materials and preparation methods based on organic polymer network structure, can solve the problems of difficult pore size controllable polymer microporous materials, narrow technical application area, etc. The effect of wide range, flexible preparation process and stable pore structure

Inactive Publication Date: 2010-06-23
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, it is difficult to obtain polymer microporous materials with controllable pore size by applying existing preparation technologies, and some technologies need to rely on special physical processes (such as supercritical carbon dioxide gasification process), and the technical application range is relatively narrow

Method used

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  • Polymer microporous material and preparation method based on organic polymer network structure
  • Polymer microporous material and preparation method based on organic polymer network structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 264.3mg 3,3'-dimethyl-4,4'-diisocyanate biphenyl to a reaction vessel, and protect the reaction vessel with nitrogen gas, then add 4mL of dry treated dimethylformamide to the reaction vessel sulfoxide solvent, stirring to dissolve the solid completely; dissolving 126.2mg melamine in 5mL dry-treated dimethyl sulfoxide solvent to obtain a clear solution, and adding the solution dropwise to 3,3'-dimethylsulfoxide under nitrogen protection -4,4'-diisocyanate biphenyl solution, the resulting reaction solution was stirred at room temperature for three days; after the reaction, the precipitated white solid was centrifuged, and the solid was washed with dimethyl sulfoxide and methanol in sequence After several times, the obtained white solid was sequentially extracted with methanol and chloroform for 48 hours in a Soxhlet extractor to obtain a white block polymer microporous material based on an organic polymer network structure of the present invention. The melamine descri...

Embodiment 2

[0020] Add 160.2 mg of 1,4-diisocyanatobenzene into a reaction vessel, and protect the reaction vessel with nitrogen gas, then add 4 mL of dry-processed dimethyl sulfoxide solvent into the reaction vessel, and stir to allow the solid to dissolve completely; 126.4mg of melamine was dissolved in 4mL of dry treated dimethyl sulfoxide to obtain a clear solution, and the solution was added dropwise to the solution of 1,4-diisocyanobenzene under the protection of nitrogen, and the resulting reaction solution was heated at room temperature Stir for three days; after the reaction, centrifuge the precipitated white solid, wash the solid with dimethyl sulfoxide and methanol several times, and extract the white solid with methanol and chloroform in a Soxhlet extractor for 48 hours , to obtain the white block polymer microporous material based on the organic polymer network structure of the present invention. The melamine described in this embodiment is a stereomolecule, and 1,4-diisocyan...

Embodiment 3

[0022] In a reaction vessel, add 68.4mg hexahydroxytriptycene and 215.3mg 3,3'-dimethyl-4,4'-diisocyanate biphenyl, and the reaction vessel is protected by nitrogen gas; then in the reaction vessel Add 8 mL of dry treated N,N'-dimethylformamide solvent, stir to completely dissolve the solid to obtain a clear solution, then add 0.3 mL of dried triethylamine to the reaction solution, and the solution quickly turns into a gel shape. Heat the gel to 50°C for 48 hours to turn into a powdery mixture, filter the mixture to obtain a brown solid, wash the solid several times with methanol and chloroform successively, and then extract with methanol and chloroform in a Soxhlet extractor for 48 hours , to obtain the light brown polymer microporous material based on the organic polymer network structure of the present invention. The hexahydroxytriptycene described in this example is a stereomolecule, and 3,3'-dimethyl-4,4'-diisocyanatobiphenyl is a fused-ring aromatic hydrocarbon molecule...

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Abstract

The invention relates to polymer microporous material and a preparation method based on organic polymer network structure; the microporous material is obtained through inter-functional group polymerization of nano organic stereo molecule with 3-8 functional groups and condensed ring aromatic hydrocarbon serial molecules with 2 functional groups, and the elimination of small molecules and low-molecule polymer through extraction; the molar ratio of the organic stereo molecule with 3-8 functional groups and the condensed ring aromatic hydrocarbon serial molecules with 2 functional groups is 1:1-4; the organic stereo molecule with 3-8 functional groups is the coordination compound formed by bipyridine derivatives and transition metal ions, melamine molecule, triptycene derivative or silsesquioxane derivatives; the polymer microporous material is formed through the covalence connection between molecules, the aperture can be adjusted through the adjustment of the sizes of stereo molecule and connection molecule, so the polymer microporous material with stable pore structure and adjustable aperture is obtained.

Description

technical field [0001] The invention belongs to the technical field of polymer microporous materials and preparation, in particular to a polymer microporous material based on an organic polymer network structure and a preparation method. Background technique [0002] Due to its special physical and mechanical properties, such as high impact strength, toughness, thermal stability, and low dielectric constant and thermal conductivity, polymer microporous materials are widely used in lightweight, high-strength, sound-insulating aircraft and automotive parts , sports equipment with light weight and strong cushioning, fiber materials for thermal insulation, etc. Moreover, if the micropores are in the form of openings, this polymer material can also become a functional polymer material with special purposes such as separation and filtration, and has great potential as packaging materials, adsorption materials, controlled release materials, and human bone materials. Very important...

Claims

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Application Information

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IPC IPC(8): C08J9/26C08L75/02C08G18/76C08G18/32C08G18/82C08L75/04C08L77/06C08G69/42C08G69/46C08L61/26C08G12/26C08L83/08C08G77/24C08G77/34
Inventor 张丹丹孙绪霞朱亚征韩宝航
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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