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Environment-friendly ether-containing elastomer and preparation method thereof

An elastomer and environmentally friendly technology, applied in the field of ether-containing polymers and their preparation, can solve the problems of limited molecular structure adjustable space, low heat resistance, poor tolerance, etc., and achieve melt processing stability and Excellent anti-aging performance, high end-capping efficiency, and the effect of reducing energy consumption

Active Publication Date: 2022-04-15
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to its excellent elasticity, deformation and mechanical properties, elastomers are widely used in aerospace oil-resistant sealing parts, electronic packaging, surface coatings, sports equipment such as sports shoes, sports equipment, infrastructure such as plastic runways, etc.; while traditional Elastomers mainly include polyurethane (PU) and polyester copolymer (TPE, TPA, etc.), they all have good mechanical properties, elastic deformation, etc. The resistance in strong corrosive environments is not good, and its heat resistance is not high. Generally, the long-term use temperature is less than 130 ° C, and it is polycondensed by diisocyanate and polyol, or polyester / polyamide segment and flexible long carbon chain electrophilic copolymerization reaction, the molecular structure can be adjusted with limited space

Method used

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  • Environment-friendly ether-containing elastomer and preparation method thereof
  • Environment-friendly ether-containing elastomer and preparation method thereof
  • Environment-friendly ether-containing elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1 (hydroquinone-C12-80%-2000-20%)

[0052] (1) 36g CH 3 COONa, 138g sodium carbonate, 2000g solvent isoquinoline and 110g hydroquinone were added to the pre-reaction kettle, and under the protection of nitrogen, dehydration reaction was performed at a temperature of 220°C for 1.5h to obtain a dehydrated pre-reaction solution at a constant temperature; (4-fluorobenzoyl)-1,12-dodecanediamine, bis(4-fluorobenzoyl)-isopropyl ether diamine with a degree of polymerization of 33 449g and 1000g solvent isoquinoline are added to the pre-mixer In the process, after the dihalogenated monomer is dissolved, the pre-reaction solution and the monomer solution in the pre-mixer are sent into the serial microchannel reactor (module number: 30 groups) by a high-pressure metering pump to control the pre-reaction The feed molar ratio of the solution and the monomer solution in the pre-mixer is 1:1.001 (oxygenated monomer: dihalogenated monomer), the feed rate is 150g / min, the po...

Embodiment 2

[0056] Embodiment 2 (hydroquinone-C6-75%-2000-25%)

[0057] (1) Add 30g of zinc benzoate, 140g of potassium carbonate, 1500g of solvent N-methylpyrrolidone and 110g of hydroquinone into the pre-reaction kettle, and under the protection of nitrogen, dehydrate at a temperature of 200°C for 1.5h to obtain dehydrated Pre-reaction solution, constant temperature; 270g of bis(4-fluorobenzoyl)-1,6-hexanediamine, bis(4-fluorobenzoyl)-562g of isopropyl ether diamine with a degree of polymerization of 33 and 1000g of solvent N-Methylpyrrolidone joins in the pre-mixer, and after the dihalogenated monomer is dissolved, the monomer solution in the pre-reaction solution and the pre-mixer is sent into the serial microchannel reactor ( Number of modules: 60 groups), the feed molar ratio of the monomer solution in the control pre-reaction solution and the pre-mixer is 1:1.001 (oxygen-containing monomer: dihalogenated monomer), the feed rate is 150g / min, Polymerize for about 1600s at a temperat...

Embodiment 3

[0061] Embodiment 3 (hydroquinone-C10-80%-400-20%)

[0062] (1) Add 20g of sodium succinate, 2g of potassium hydroxide, 800g of solvent sulfolane and 142g of hydroquinone to the pre-reaction kettle, and under the protection of nitrogen, dehydrate at a temperature of 220°C for 2.5h to obtain the dehydrated pre-reaction Reaction solution, constant temperature; 332.8g of bis(4-fluorobenzoyl)-1,10-decanediamine, bis(4-fluorobenzoyl)-129g of isopropyl ether diamine with a degree of polymerization of 6 and 1000g of solvent N sulfolane joins in the premixer, and after the dihalogenated monomer dissolves, the monomer solution in the prereaction solution and the premixer is sent into the serial microchannel reactor (number of modules: 50 groups), the feeding molar ratio of the monomer solution in the control pre-reaction solution and the pre-mixer is 1:1.001 (sulfur-containing monomer: dihalogenated monomer), the feeding speed is 80g / min, and the polymerization is about 1500s , the te...

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Abstract

The invention relates to an ether-containing polymer and a preparation method thereof, and belongs to the field of polymer synthesis. The invention provides an environment-friendly ether-containing elastomer. The structural formula of the environment-friendly ether-containing elastomer is shown as a formula I. The environment-friendly ether-containing elastomer with a new structure is prepared; due to the introduction of the micro-channel reactor, the reaction efficiency is higher, the time is saved, and heat release and mass transfer of materials in the reaction process can be better controlled; the polymer with narrow molecular weight distribution can be prepared; meanwhile, by controlling the feeding amount and feeding speed of the ether-containing reaction solution and the dihalogenated monomer solution and the number of reaction modules of the micro-channel reactor, the reaction ratio and the molecular weight and molecular weight distribution of the ether-containing elastomer can be controlled.

Description

technical field [0001] The invention relates to an ether-containing polymer and a preparation method thereof, belonging to the field of polymer synthesis. Background technique [0002] Due to its excellent elasticity, deformation and mechanical properties, elastomers are widely used in aerospace oil-resistant sealing parts, electronic packaging, surface coatings, sports equipment such as sports shoes, sports equipment, infrastructure such as plastic runways, etc.; while traditional Elastomers mainly include polyurethane (PU) and polyester copolymer (TPE, TPA, etc.), they all have good mechanical properties, elastic deformation, etc. The resistance in strong corrosive environments is not good, and its heat resistance is not high. Generally, the long-term use temperature is less than 130 ° C, and it is polycondensed by diisocyanate and polyol, or polyester / polyamide segment and flexible long carbon It is prepared by chain electrophilic copolymerization, and the molecular stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40C08G65/46C08G75/04
CPCY02P20/584
Inventor 不公告发明人
Owner SICHUAN UNIV
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