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,

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

Example Embodiment

[0037] Example 1:

[0038] Preparation (1) CDPs of

[0039] Adding 310mg terephthaloyl diisocyanate and 1gβ-CD to 10mL of dry N, N- dimethylformamide, and then the reaction was continued with stirring under nitrogen at 120 ℃ 20h. The resulting precipitate product was filtered and washed 3 times with DMF. The final product was further purified by Soxhlet extraction using CDPs-20, then transferred to a vacuum oven dried overnight under vacuum at 80 ℃, obtained CDPs-20;

[0040] (2) Synthesis of polymer-adamantyl bromide (Abib) of

[0041]First, 2.2 g of 6-bromoic acid dissolved in anhydrous methylene chloride under room temperature, followed by 25 ml of thionyl chloride to the above solution in 30 minutes. The above solution was stirred under nitrogen gas for 20 hours, eventually removing excess thionyl chloride under rotary evaporation conditions, and finally obtained an intermediate product ABIB.

[0042] (3) Synthesis of boric acid grafted bromide diamond polymer (abib-ba)

[004...

Example Embodiment

[0050] Example 2:

[0051] (1) Preparation of CDPS

[0052] 320 mg of benzoisocyanate and 1.1 g of beta-Cd were added to a solution of 20 ml of anhydrous anhydrous N, N-dimethylformamide, and then the reaction system was continuously stirred at 120 ° C under nitrogen protection for 20 h. The precipitated product obtained was filtered and washed 3 times with DMF. The final product was extracted by Supo to extract CDPS-20, subsequently transferred to a vacuum oven overnight overnight at 80 ° C, resulting in CDPS-20;

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

[0054] First, 2.22 g 6-bromoic acid dissolved into 10 ml of anhydrous methylene chloride under room temperature, followed by dripping to the above solution in 30 ml of thionyl chloride. The above solution was stirred under nitrogen gas for 20 hours, eventually removing excess thionyl chloride under rotary evaporation conditions, and finally obtained an intermediate product ABIB.

[0055] (3) Synthesis of boric...

Example Embodiment

[0059] Example 3:

[0060] (1) Preparation of CDPS

[0061] 330 mg of benzoisocyanate and 1.2 g of beta-Cd were added to a solution of 30 ml of anhydrous anhydrous N, N-dimethylformamide, and then the reaction system was continuously stirred at 120 ° C under nitrogen gas treatment for 20 h. The precipitated product obtained was filtered and washed 3 times with DMF. The final product was extracted by Supo to extract CDPS-20, subsequently transferred to a vacuum oven overnight overnight at 80 ° C, resulting in CDPS-20;

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

[0063] First, 2.24 g of 6-bromoic acid dissolved in 11 ml of anhydrous methylene chloride, followed by a drop of 35 ml of thionyl chloride to the above solution in 30 minutes. The above solution was stirred under nitrogen gas for 20 hours, eventually removing excess thionyl chloride under rotary evaporation conditions, and finally obtained an intermediate product ABIB.

[0064] (3) Synthesis of boric acid g...

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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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