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Multifunctional composite material, polyether and preparation method and application thereof

A composite material and multi-functional technology, applied in chemical instruments and methods, carbon compounds, polyurea/polyurethane coatings, etc., can solve problems such as distribution, low degree of grafting, and phase separation

Active Publication Date: 2020-05-15
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the compounding of polyether polyols and graphite sheet materials is generally done by blending (simple blending or supramolecular action), which is simple and efficient, but there are problems such as uneven doping and phase separation.
Secondly, polyether polyols can be composited with graphite sheet materials by covalent grafting. Generally, there are problems such as low degree of grafting and distribution on the edge of graphite sheet materials.

Method used

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  • Multifunctional composite material, polyether and preparation method and application thereof
  • Multifunctional composite material, polyether and preparation method and application thereof
  • Multifunctional composite material, polyether and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1. Synthesis of 2,2',6,6'-tetrafluoro-4-amino-4'hydroxyazobenzene (AZO-1): Weigh 10mol of 3,5-difluoro-4-aminophenol (1450g) and dissolve In 25mol of HCl solution (concentration 38%), it is recorded as A1. Weigh 10mol of NaNO 2 (690g) was dissolved in 5000mL deionized water, and the NaNO 2 Slowly added dropwise to A1. Keep the temperature at 0-5°C, stir and react for 30 minutes to obtain diazonium salt solution B1, weigh 10mol 3,5-difluoroaniline (1290g) and dissolve it in 5000mL of water / acetone with a volume ratio of 5:1 at 0-5°C solution, solution B1 was slowly added dropwise to the solution, using saturated NaHCO 3 The pH of the aqueous solution was adjusted to about 6, and the reaction time was 6h. After the reaction, the product AZO-1 was obtained by recrystallization with ethanol / water (volume ratio 1:1). 19 F NMR (376 MHz, DMSO-d6): δ = -121.33 (s, 4F; Ar-F). HRMS-ESI: m / z: 285.0522 (calcd. for [M+H]+, 285.0525).

[0053] 2. Multifunctional composite mate...

Embodiment 2

[0056] 1. Synthesis of 2,2',6,6'-tetrabromo-4-amino-4'hydroxyazobenzene (AZO-2): Weigh 10mol 3,5-dibromo-4aminophenol (2670g) and dissolve it in 30molHCl In the solution (concentration 38%), record it as A2. Weigh 11mol NaNO 2 (759g) was dissolved in deionized water, and the NaNO 2 Slowly added dropwise to A2. Keep the temperature at 0-5°C, stir and react for 45 minutes to obtain diazonium salt solution B2. Weigh 10mol of 3,5-dibromoaniline (2510g) and dissolve it in a water / acetone mixed solution with a volume ratio of 5:1 at 0-5°C, slowly add solution B2 to the solution, and use saturated NaHCO 3 The pH of the aqueous solution was adjusted to about 6.5, and the reaction time was 7h. After the reaction, the product AZO-2 was obtained by recrystallization with ethanol / water (volume ratio 1:1). HRMS-ESI: m / z: 528.7279 (calcd.for[M+H] + ,528.7282).

[0057] 2. Multifunctional composite material: weigh 1mol of AZO-2 and 1.1mol of NaNO 2 Add it into a flask containing 500 ...

Embodiment 3

[0060] The synthesis of 1.2,2',6,6'-tetramethoxy-4-amino-4'hydroxy azobenzene (AZO-3): Weigh 10mol 3,5-dimethoxy-4 aminophenol ( 1690g) was dissolved in 40mol HCl (concentration 38%) solution, recorded as A3. Weigh 21molNaNO 2 (1449g) was dissolved in deionized water, and the NaNO 2 Slowly added dropwise to A3. Keep the temperature at 0-5°C, stir and react for 60 minutes to obtain diazonium salt solution B3. Weigh 18mol of 3,5-dimethoxyaniline (2754g) and dissolve it in a water / acetone mixed solution with a volume ratio of 5:1 at 0-5°C, slowly add solution B3 to the solution, and use a saturated NaHCO 3 The pH of the aqueous solution is adjusted to 5-7, and the reaction time is 8 hours. After the reaction, the product AZO-3 was obtained by recrystallization with ethanol / water (volume ratio 1:1). HRMS-ESI: m / z: 333.1324 (calcd. for [M+H]+, 333.1325).

[0061] 2. Multifunctional composite material: weigh 1mol of AZO-3 and 1.18mol of NaNO 2 Add it into a flask containing ...

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Abstract

The invention discloses a multifunctional composite material, polyether as well as a preparation method and application thereof, and belongs to the field of composite materials. The main content of the invention relates to preparation of a multifunctional nano-composite, polyether with different structures is synthesized by using the novel initiator, and the polyether has a photo-response performance, a thermal insulation performance and enhanced mechanical properties, and has wide application value in the field of intelligent materials in the future.

Description

technical field [0001] The invention relates to a multifunctional composite material, polyether and its preparation method and application, belonging to the field of composite materials. Background technique [0002] As a traditional two-dimensional material, graphite sheet materials have the characteristics of high specific surface area, light weight, excellent electronic conductivity, and good chemical and thermodynamic stability, and have broad application prospects in the field of polymer performance enhancement. [0003] The functionalization of graphite sheet materials is a research hotspot in recent years. Various materials such as organic functional molecules, inorganic nanoparticles, polymers, etc. have realized the composite with graphite sheet materials through non-covalent bonds, covalent bonds and other methods. Generally speaking, the compounding of polyether polyols and graphite sheet materials is generally done by blending (simple blending or supramolecular a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C245/08C01B32/194C01B32/198C01B32/21C01B32/225C08G65/28C08G18/85C09D175/04
CPCC07C245/08C01B32/194C01B32/198C01B32/21C01B32/225C08G65/2639C08G65/2675C08G18/85C09D175/04
Inventor 秦承群陈帅殷玲李付国刘洋刘斌叶天石正阳黎源
Owner WANHUA CHEM GRP CO LTD
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