Copolymers of intrinsic microporosity, and preparation method and application thereof

A copolymer and microporous technology, used in separation methods, chemical instruments and methods, methane capture, etc., can solve the problems of high gas permeability and low selectivity, and achieve good repeatability and high gas permeability. , the effect of excellent gas separation performance

Active Publication Date: 2017-01-04
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is not the case in practice. In general, when the permeability of the membrane is high, its selectivity is often relatively low, and vice versa.
For self-porous polymers, this problem also exists (high gas transmission rate, low selectivity)

Method used

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  • Copolymers of intrinsic microporosity, and preparation method and application thereof
  • Copolymers of intrinsic microporosity, and preparation method and application thereof
  • Copolymers of intrinsic microporosity, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] The synthesis of embodiment 1TBPIM100

[0067] Add 3.001g of tetrafluoroterephthalonitrile to the reactor equipped with a water separator, and 4.290g of 15mmol 2,3,8,9-tetraphenol hydroxyl-6H,12H-5,11-methylenediphenyl And[b,f][1,5]diazapine, 6.21g anhydrous K 2 CO 3 and 30ml N,N-dimethylacetamide, stir well. Under nitrogen, the reaction device was transferred to an oil bath at 155° C., stirred mechanically, and the reaction was continued for 30 minutes. After the reaction system was cooled, the reaction product was poured into methanol for precipitation. The obtained precipitate was filtered, dissolved in chloroform, and then precipitated into methanol, and repeated three times. Finally, the obtained yellow solid was placed in boiling water, boiled for 5-8 hours, and vacuum-dried at 80° C. for 20 hours to obtain the target product for use. The target product is insoluble in common solvents, specific surface area = 560m 2 / g.

Embodiment 2

[0068] The synthesis of embodiment 2TBPIM60

[0069] Add 3.001g of tetrafluoroterephthalonitrile to the reactor equipped with a water separator, and 2.040g of 5,5',6,6'-tetrahydroxy-3,3',3,3'-tetramethyl Spirobisindene and 2.574 g of 15 mmol 2,3,8,9-tetraphenolic hydroxy-6H,12H-5,11-methylenedibenzo[b,f][1,5]diazocine, 6.21g anhydrous K 2 CO 3 and 30ml N,N-dimethylacetamide, stir well. Under nitrogen, the reaction device was transferred to an oil bath at 155° C., stirred mechanically, and the reaction was continued for 30 minutes. After the reaction system was cooled, the reaction product was poured into 500ml of methanol for precipitation. The obtained precipitate was filtered, dissolved in chloroform, and then precipitated into methanol, and repeated three times. Finally, the obtained fluorescent yellow solid was placed in boiling water, boiled for 5-8 hours, and vacuum-dried at 80° C. for 20 hours to obtain the target product for use. The target product characterizati...

Embodiment 3

[0070] The synthesis of embodiment 3TBPIM40

[0071] Add 3.001g of tetrafluoroterephthalonitrile to the reactor equipped with a water separator, and 3.060g of 5,5',6,6'-tetrahydroxy-3,3',3,3'-tetramethyl Spirobisindene and 1.716 g of 15 mmol 2,3,8,9-tetraphenolhydroxyl-6H,12H-5,11-methylenedibenzo[b,f][1,5]diazalocine, 6.21g anhydrous K 2 CO 3 and 30ml N,N-dimethylacetamide, stir well. Under nitrogen, the reaction device was transferred to an oil bath at 155° C., stirred mechanically, and the reaction was continued for 30 minutes. After the reaction system was cooled, the reaction product was poured into methanol for precipitation. The obtained precipitate was filtered, dissolved in chloroform, and then precipitated into methanol, and repeated three times. Finally, the obtained fluorescent yellow solid was placed in boiling water, boiled for 5-8 hours, and vacuum-dried at 80° C. for 20 hours to obtain the target product for use. The target product characterization data a...

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Abstract

The invention discloses copolymers of intrinsic microporosity; the copolymers of intrinsic microporosity have the structure represented by the following formula described in the specification, wherein R is at least from substances represented by the following structural formulas, m and n are integers greater than or equal to 0 but are not 0 at the same time, and the ratio of n to m is (0-1) to (0-1). The copolymers are synthesized by a way of polycondensation with a Hitler alkali structure unit as a functional group. The copolymers have the characteristics of high specific surface area, high gas permeability rate, processable solvent and the like, and can be used for forming a test membrane material for a gas permeability rate test device; the membrane material has excellent gas separation performance, especially the separation performance of the oxygen/nitrogen gas pair is close to or beyond the Robeson upper limit updated in 2008, and the membrane material has wide prospect in industrial gas separation application.

Description

technical field [0001] The present invention particularly relates to a class of self-porous polymers (CoPIMs) with Telleg bases as structural units and their preparation methods and applications, such as their use in the selective separation of gases. Background technique [0002] Membrane gas separation technology has very important and wide applications, such as the purification of hydrogen (H 2 / N 2 ,H 2 / CH 4 ), air separation (O 2 / N 2 ), capture and separation of carbon dioxide (CO 2 / CH 4 ,CO 2 / N 2 )etc. Membrane gas separation technology is of special significance to the synthetic ammonia industry, petrochemical industry, and industrial gas manufacturing industry. Polymer membrane gas separation technology has become the focus of research in the field of gas separation in recent years because of its high efficiency, low energy and easy processing and production. Previous polymer gas separation materials such as cellulose acetate, polyethersulfone, and tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G67/00B01D53/22B01D71/72C08J5/18
CPCY02C20/20
Inventor 靳健王正宫王栋
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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