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Nitrogen-rich porous polymer containing heteroatom, imine and triazine ring structure and preparation method

A technology of porous polymers and triazine rings, applied in the field of polymer science, can solve unseen problems and achieve the effects of improving adsorption and separation efficiency, good application prospects, and high specific surface area

Active Publication Date: 2021-02-19
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The nitrogen-rich porous polymer containing triazine and imine structure and its preparation method have not been found in relevant patent technical reports, nor have they appeared in public publications at home and abroad

Method used

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  • Nitrogen-rich porous polymer containing heteroatom, imine and triazine ring structure and preparation method
  • Nitrogen-rich porous polymer containing heteroatom, imine and triazine ring structure and preparation method
  • Nitrogen-rich porous polymer containing heteroatom, imine and triazine ring structure and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Example 1, preparation of nitrogen-rich porous polymer PAN-TPAHPZ containing triazine ring, phthalazinone biphenyl and imine structure

[0032] Tris[4-(4-(2-(4-cyanophenyl))-2,3-naphthyridine-1-one)phenyl]amine (TPAHPZ-TN) (2mmol), dicyandiamide (12mmol), KOH (4mmol) and ethylene glycol methyl ether (2.8mL) were mixed uniformly in a three-necked flask, and then the temperature was gradually raised to 160° C. for 1 h under nitrogen atmosphere. Submerge the suspension obtained after the reaction into hot water, filter out the solid product, wash with hot water, and dry to obtain TPAHPZ-TDA, a polyamine monomer containing a triazine ring and a phthalazinone biphenyl structure.

[0033] Add polyamine monomer TPAHPZ-TDA (0.4mmol), benzaldehyde (2.4mmol) and dimethyl sulfoxide (DMSO, 2.8mL) into the nitrogen-substituted reaction flask, and then replace nitrogen three times. The reactant was slowly warmed up to 100°C and reacted under DMSO reflux for 100h. Afterwards, the mi...

Embodiment 2

[0036] Example 2, preparation of porous polymer PAN-POTDA containing pyridine, triazine ring, thiophene and imine structure

[0037] Weigh pyridine 2,6-dinitrile (2mmol), dicyandiamide (8mmol), KOH (2.2mmol) and ethylene glycol diethyl ether (200mL), add them into a three-necked flask and mix them evenly. Gradually raise the temperature to 80°C and react for 24h. The suspension obtained after the reaction is poured into hot water, and the product solid is filtered out, washed with hot water, and dried to obtain the polyamine monomer POTDA containing pyridine and triazine ring structures.

[0038]Add polyamine monomer POTDA (2.0 mmol), 2-thiophenecarbaldehyde (8.0 mmol) and N-methylpyrrolidone (NMP, 200 mL) into the nitrogen-substituted reaction flask, and then replace nitrogen three times. The reactants were slowly warmed up to 210°C for 10 hours. Afterwards, the mixture was suction filtered and washed with N,N-dimethylformamide and methanol respectively to obtain a solid, a...

Embodiment 3

[0041] Embodiment 3, the preparation that contains pyridine ring, triazine ring and imine structure porous polymer PAN-POTDA

[0042] Weigh pyridine 2,6-dinitrile (2mmol), dicyandiamide (20mmol), KOH (20mmol) and ethylene glycol diethyl ether (200mL), add them into a three-necked flask and mix well, gradually Raise the temperature to 150°C and react for 10h. The suspension obtained after the reaction is poured into hot water, and the product solid is filtered out, washed with hot water, and dried to obtain a polyamine monomer POTDA containing a pyridine ring and a triazine ring structure.

[0043] Add polyamine monomer POTDA (2.0 mmol), terephthalaldehyde (8.0 mmol) and dimethyl sulfoxide (DMSO, 60 mL) into the nitrogen-substituted reaction flask, and then replace nitrogen three times. The reactant was slowly warmed up to 180°C for 50h. Afterwards, the mixture was suction-filtered and washed with N,N-dimethylformamide and methanol respectively to obtain a solid, and then the...

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Abstract

The invention belongs to the field of polymer materials, and relates to a nitrogen-rich porous polymer containing heteroatoms, imines and triazine ring structures and a preparation method. After adding polyamine monomers containing triazine rings and heteroatom structures, aldehyde-based monomers and aprotic organic solvents into the reaction flask replaced with inert gas, the reaction flask was replaced with inert gas for more than two times, and the reactants slowly Raise the temperature to 100°C-210°C and react for 10h-100h. After the reaction, the mixture is suction-filtered, washed with polar aprotic solvent and organic solvent respectively, then filtered and dried to obtain the product. The nitrogen-rich porous polymer prepared by the invention has the characteristics of high specific surface area and high gas adsorption capacity, and has fast and efficient adsorption performance for iodine vapor. At the same time, the polymer involved in the present invention has a simple synthesis method, good thermal stability and chemical stability, meets the requirements of gas adsorption and storage, heterogeneous catalysis, and the like, and has good application prospects.

Description

technical field [0001] The invention belongs to the field of polymer science and technology, and relates to a functional polymer material and a preparation method thereof, in particular to a nitrogen-rich porous polymer containing heteroatoms, imine and triazine ring structures and a preparation method thereof. Background technique [0002] Porous polymers (POPs) are a class of organic porous materials composed of organic molecules connected by covalent bonds, mainly composed of carbon, nitrogen, oxygen, boron, etc. Compared with metal-organic frameworks (MOFs), activated carbon and Molecular sieves and other materials, porous polymers can adjust their structure and properties in a wide range by changing the functional groups and chain lengths of the building molecules and using different synthesis methods, and porous polymers have higher Chemical and thermal stability. Porous polymers have potential applications in gas storage, adsorption, separation, energy storage, and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G12/30C07D403/14C07D401/14C07D251/18B01J20/26B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2257/2068B01D2257/504B01D2257/70B01J20/262B01J20/28054C07D251/18C07D401/14C07D403/14C08G12/30Y02C20/40
Inventor 刘程蹇锡高张守海王锦艳翁志焕胡方圆柳承德
Owner DALIAN UNIV OF TECH
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