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Flexible porous boron affinity copolymer adsorbent as well as preparation method and application thereof

A technology of copolymers and adsorbents, which is applied in the field of preparation of flexible porous boron affinity copolymer adsorbents, can solve problems such as volume and shape instability, limited applications, flexible porous polymer network structure is easy to disintegrate or collapse, and achieve The effects of excellent chemical properties, simplified adsorption and desorption operations, and excellent mass transfer kinetics

Pending Publication Date: 2021-11-12
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the flexible porous polymer network structure is easy to disintegrate or collapse, and the volume and shape are unstable, which greatly limits their application in complex sample systems

Method used

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  • Flexible porous boron affinity copolymer adsorbent as well as preparation method and application thereof
  • Flexible porous boron affinity copolymer adsorbent as well as preparation method and application thereof
  • Flexible porous boron affinity copolymer adsorbent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of CDPs

[0039] 310mg of p-phenylene diisocyanate and 1g of β-CD were added to 10mL of anhydrous N,N-dimethylformamide solution, and then the reaction system was continuously stirred at 120°C for 20h under the protection of nitrogen. The resulting precipitated product was filtered and washed 3 times with DMF. The final product was further purified by Soxhlet extraction, CDPs-20, and then transferred to a vacuum oven at 80°C for overnight drying to obtain CDPs-20;

[0040] (2) Synthesis of brominated adamantane polymer (ABIB)

[0041]First, at room temperature, 2.2 g of 6-bromohexanoic acid was dissolved in 9 ml of anhydrous chloroform, and then 25 ml of thionyl chloride was added dropwise to the above solution within 30 minutes, The above solution was stirred and reacted for 20 hours under the protection of nitrogen, and finally the excess thionyl chloride was removed by rotary evaporation to finally obtain the intermediate product ABIB.

[0042] (3)...

Embodiment 2

[0051] (1) Preparation of CDPs

[0052] 320mg of p-phenylene diisocyanate and 1.1g of β-CD were added to 20mL of anhydrous N,N-dimethylformamide solution, and then the reaction system was continuously stirred at 120°C for 20h under the protection of nitrogen. The resulting precipitated product was filtered and washed 3 times with DMF. The final product was further purified by Soxhlet extraction, CDPs-20, and then transferred to a vacuum oven at 80°C for overnight drying to obtain CDPs-20;

[0053] (2) Synthesis of brominated adamantane polymer (ABIB)

[0054] First, at room temperature, 2.22 g of 6-bromohexanoic acid was dissolved in 10 ml of anhydrous chloroform, and then 30 ml of thionyl chloride was added dropwise to the above solution within 30 minutes, The above solution was stirred and reacted for 20 hours under the protection of nitrogen, and finally the excess thionyl chloride was removed by rotary evaporation to finally obtain the intermediate product ABIB.

[0055...

Embodiment 3

[0060] (1) Preparation of CDPs

[0061] 330mg of p-phenylene diisocyanate and 1.2g of β-CD were added to 30mL of anhydrous N,N-dimethylformamide solution, and then the reaction system was continuously stirred at 120°C for 20h under the protection of nitrogen. The resulting precipitated product was filtered and washed 3 times with DMF. The final product was further purified by Soxhlet extraction, CDPs-20, and then transferred to a vacuum oven at 80°C for overnight drying to obtain CDPs-20;

[0062] (2) Synthesis of brominated adamantane polymer (ABIB)

[0063] First, at room temperature, 2.24 g of 6-bromohexanoic acid was dissolved in 11 ml of anhydrous chloroform, and then 35 ml of thionyl chloride was added dropwise to the above solution within 30 minutes, The above solution was stirred and reacted for 20 hours under the protection of nitrogen, and finally the excess thionyl chloride was removed by rotary evaporation to finally obtain the intermediate product ABIB.

[0064...

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Abstract

The invention belongs to the technical field of preparation of environmental functional materials, and particularly discloses a preparation method of a flexible porous boron affinity copolymer adsorbent. The preparation method comprises the steps of firstly synthesizing CDPs-20, emulsifying by taking the CDPs-20 as stable particles to obtain a Pickering oil-in-water single emulsion, taking the synthesized ABIB-BA as a functional monomer, introducing a boric acid modified adamantane inclusion functional monomer on an emulsion interface in a host-guest interaction mode, and finally preparing the flexible porous boron affinity copolymer adsorbent by utilizing an emulsion template, wherein the flexible porous boron affinity copolymer adsorbent is used for selective separation of naringin. The prepared flexible porous boron affinity copolymer adsorbent has excellent shape memory ability, can efficiently separate and enrich naringin, and has acid-base controlled release performance.

Description

technical field [0001] The invention belongs to the technical field of preparation of environmental functional materials, and relates to a preparation method and application of a flexible porous boron-affinity copolymer adsorbent. Background technique [0002] Naringin is a natural flavonoid compound, which has various pharmacological activities, such as antibacterial, anticancer, antiviral, antioxidative, and cardiovascular disease prevention and treatment capabilities. Purification There are many methods for the separation and purification of naringin in pomelo sacs. However, although these methods have their own unique advantages, the common defects are poor selectivity and low reuse rate. Therefore, establishing and perfecting a new strategy for selective identification and separation and purification of naringin in pomelo peel extract, increasing product yield and obtaining higher purity has attracted great attention. Boronic acid-based adsorbents are based on the bor...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30C07H1/06C07H17/07
CPCB01J20/264B01J20/28054C07H17/07C07H1/06
Inventor 刘树成孙莹郭丹钊潘建明胡智于秋旺
Owner JIANGSU UNIV
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