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A kind of quaternary ammonium salt type hyperbranched anion exchange resin and preparation method thereof

A technology of exchanging resin and anion, applied in the field of polymer, can solve the problem that resin has not been reported, and achieve the effect of large pore size and large specific surface area.

Inactive Publication Date: 2015-09-09
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report about hyperbranched grafted resins

Method used

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  • A kind of quaternary ammonium salt type hyperbranched anion exchange resin and preparation method thereof
  • A kind of quaternary ammonium salt type hyperbranched anion exchange resin and preparation method thereof
  • A kind of quaternary ammonium salt type hyperbranched anion exchange resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment 1 contains the ion exchange resin of second generation hyperbranched polymer

[0066] Porous ceramic particles pretreatment, first soak porous ceramic particles with 1 mol / L NaOH solution for 3 hours, then rinse sodium hydroxide with secondary deionized water and methanol to treat porous ceramic particles, and finally dry the treated porous ceramic particles The porous ceramic particles were soaked in a toluene solution of 10% γ-glycidyl etheroxypropyltrimethoxysilane, and reacted in a reaction kettle at 110°C for 40min. Finally, rinse with toluene and methanol for 10 min each to obtain silanized porous ceramic particles.

[0067] Using a reactor with a stirrer and a nitrogen inlet, take 1.34 kg of trimethylolpropane and 20 L of anhydrous dichloromethane into the reactor, and take the monomer 3-methyl-3-hydroxymethyloxetane 9.18 kg was dissolved in 50 L of anhydrous dichloromethane and poured into the reaction apparatus. Then repeatedly vacuumize and pass ...

Embodiment 2

[0068] Embodiment 2 contains the ion exchange resin of three generations of hyperbranched polymers

[0069] Porous ceramic particles pretreatment, first soak porous ceramic particles with 1 mol / L NaOH solution for 3 hours, then rinse sodium hydroxide with secondary deionized water and methanol to treat porous ceramic particles, and finally dry the treated porous ceramic particles The porous ceramic particles were soaked in a toluene solution of 10% γ-glycidyl etheroxypropyltrimethoxysilane, and reacted in a reaction kettle at 110°C for 40min. Finally, rinse with toluene and methanol for 10 min each to obtain silanized porous ceramic particles.

[0070] Use a reactor with a stirrer and a nitrogen inlet, take 0.67 kg of trimethylolpropane, add 20 L of anhydrous dichloromethane into the reactor, and take the monomer 3-methyl-3-hydroxymethyloxetane 10.71 kg was dissolved in 50 L of anhydrous dichloromethane and poured into the reaction apparatus. Then repeatedly vacuumize and ...

Embodiment 3

[0071] Embodiment 3 contains the ion exchange resin of four generations of hyperbranched polymers

[0072] Porous ceramic particles pretreatment, first soak porous ceramic particles with 1 mol / L NaOH solution for 3 hours, then rinse sodium hydroxide with secondary deionized water and methanol to treat porous ceramic particles, and finally dry the treated porous ceramic particles The porous ceramic particles were soaked in a toluene solution of 10% γ-glycidyl etheroxypropyltrimethoxysilane, and reacted in a reaction kettle at 110°C for 40min. Finally, rinse with toluene and methanol for 10 min each to obtain silanized porous ceramic particles.

[0073] Use a reactor with a stirrer and a nitrogen inlet, take 0.27 kg trimethylolpropane, add 20 L of anhydrous dichloromethane into the reactor, and take the monomer 3-methyl-3-hydroxymethyloxetane 9.18 kg was dissolved in 50 L of anhydrous dichloromethane and poured into the reaction apparatus. Then repeatedly vacuumize and pass ...

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Abstract

The invention discloses quaternary ammonium salt type hyperbranched negative-ion exchange resin and a preparation method thereof. The preparation method comprises the following steps of: grafting hyperbranched polymer on a porous material, and forming the hyperbranched negative-ion exchange resin. In the invention, a simpler method is adopted for modifying the ion exchange resin, the preparation process has lower requirement for equipment, the reaction condition is moderate, the operation and the implementation are easy, the grafted ion exchange resin overcomes the defects of small resin hole diameter, large diffusion resistance and low exchange rate of ions in resin in the prior art, the environmental protection is better realized, the requirement for modern industrial wastewater treatment can be better met, the popularizing prospect is good, and the application value is wide.

Description

technical field [0001] The invention relates to an anion exchange resin and a preparation method thereof, in particular to a quaternary ammonium salt type hyperbranched anion exchange resin and a preparation method thereof, belonging to the technical field of polymers. Background technique [0002] With the rapid development of industrialization in our country, industrial wastewater has become one of the main sources of water pollution, seriously threatening the ecological environment and human health. In recent years, although local governments have actively adopted some measures to control the total discharge of industrial wastewater to a certain extent, compared with developed countries, my country's current form of further reduction of industrial wastewater discharge is still not optimistic. [0003] Ion exchange resin is a kind of active group with exchanging ions, which has a network structure and is insoluble. It is widely used in environmental protection and plays a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/338C08G65/328C08G65/333C08G65/336C08G65/28B01J41/12B01J41/13
Inventor 寿崇琦蒋大庆刘冰许林薄强龙类彦辉
Owner UNIV OF JINAN