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Conjugated microporous polymer based on 2,4,6-tri(4-formylphenyl)-1,3,5-triazine and preparation method of conjugated microporous polymer

An aldehyde-based phenyl, conjugated microporous technology, applied in the field of conjugated microporous polymers, can solve the problems of inability to meet the needs of diversified CMPs, few types of CMPs, etc., achieve large-scale production, and the preparation method is simple and easy. row effect

Active Publication Date: 2021-03-30
TAIZHOU UNIV
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Problems solved by technology

However, there are few types of CMPs in the prior art, which cannot meet the needs of society for diversified CMPs

Method used

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  • Conjugated microporous polymer based on 2,4,6-tri(4-formylphenyl)-1,3,5-triazine and preparation method of conjugated microporous polymer
  • Conjugated microporous polymer based on 2,4,6-tri(4-formylphenyl)-1,3,5-triazine and preparation method of conjugated microporous polymer
  • Conjugated microporous polymer based on 2,4,6-tri(4-formylphenyl)-1,3,5-triazine and preparation method of conjugated microporous polymer

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[0039] The invention provides a method for preparing a conjugated microporous polymer based on 2,4,6-tris(4-formylphenyl)-1,3,5-triazine, comprising the following steps:

[0040] Mix the first monomer, the second monomer and an organic solvent, and react in a protective atmosphere to obtain a co- conjugated microporous polymers;

[0041] The first monomer is 2,4,6-tris(4-formylphenyl)-1,3,5-triazine, and the second monomer includes thiooxamide or symmetric indacene-1 ,3,5,7(2H,6H)-tetraketone.

[0042] In the present invention, the molar ratio of the first monomer to the second monomer is preferably 2:(2.8-3.2), more preferably 2:3.

[0043] In the present invention, the type of organic solvent and specific reaction conditions are preferably selected according to the specific type of the second monomer.

[0044] In the present invention, when the second monomer is thiooxamide, the organic solvent preferably includes N,N-dimethylformamide, N,N-dimethylacetamide and dioxane ...

Embodiment 1

[0067] Thiooxamide (0.3606g, 3mmol), 2,4,6-tris(4-formylphenyl)-1,3,5-triazine (0.7868g, 2mmol) and N,N-dimethyl Formamide (10 mL) was added to the beaker, the resulting mixture was ultrasonically dispersed and then poured into the hydrothermal synthesis reaction kettle, and nitrogen gas was passed for 5 minutes, and the hydrothermal synthesis reaction kettle was sealed and placed in a constant temperature drying oven at 160 °C The polymerization reaction was carried out under the conditions for 24 hours; after the reaction was completed, it was cooled to room temperature, the obtained product system was suction filtered, the obtained solid material was washed with absolute ethanol, and dried, and the obtained brown-yellow product was based on 2,4,6-tris(4- The conjugated microporous polymer of aldehyde phenyl)-1,3,5-triazine (abbreviated as SKC-CMP-1, the specific structural formula is shown in formula I), the yield is 0.7932g, and the yield is 72%.

[0068]

Embodiment 2

[0070] The preparation of symmetric indacene-1,3,5,7(2H,6H)-tetraketone comprises the following steps:

[0071] Mix pyromellitic dianhydride (20.0005g, 0.091mol), ethyl acetoacetate (35mL, 0.275mol) and triethylamine (112mL, 1.1mol), heat the oil bath to 60°C, and add ethyl Acid anhydride (300mL), heat up to 100°C, keep warm for 2h; cool to room temperature after the reaction, then cool at 0°C for 12h, a brown precipitate appears, vacuum filter the resulting material, and wash with acetic anhydride (20mL) and anhydrous diethyl ether (20mL) were washed 3 times, and the first orange solid was obtained after drying;

[0072] The first orange solid (6.0005g, 10.5mmol) was dissolved in distilled water (500mL) to form a dark orange solution, and concentrated sulfuric acid (6mL, 98wt%) was added to the dark orange solution under ice-water bath conditions, A solid precipitated, filtered under reduced pressure and washed with absolute ethanol, and dried to obtain a second orange solid...

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Abstract

The invention relates to the technical field of conjugated microporous polymers, in particular to a conjugated microporous polymer based on 2,4,6-tri(4-formylphenyl)-1,3,5-triazine and a preparation method of the conjugated microporous polymer. Thiooxamide or s-indacene-1,3,5,7(2H,6H)-tetrone is introduced on the basis of 2,4,6-tri(4-formylphenyl)-1,3,5-triazine, and the prepared conjugated microporous polymer based on2,4,6-tri(4-formylphenyl)-1,3,5-triazine is of an amorphous structure, is in a loose irregular block shape, and has certain thermal stability and adsorption capacity. The material can be used as a gas adsorption or separation material.

Description

technical field [0001] The invention relates to the technical field of conjugated microporous polymers, in particular to 2,4,6-tris(4-formylphenyl)-1,3,5-triazine-based conjugated microporous polymers and a preparation method thereof . Background technique [0002] The synthesis and application of porous organic polymers have developed vigorously in recent years. It is a new type of polymer porous material with micropores or mesoporous structures formed by organic structural units connected by covalent bonds. There are many types of them. Diverse, mainly including crystalline covalent organic framework polymers (COFs) and non-crystalline microporous organic polymers (POPs), among which non-crystalline microporous organic polymers include linked microporous polymers (HCPs) , self-porous polymers (PIMs) and conjugated microporous polymers (CMPs), etc. [0003] As a branch of porous organic polymers, CMPs have attracted extensive attention of researchers in recent years due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06B01D53/02B01J20/30B01J20/26
CPCC08G73/0644B01D53/02B01J20/262B01D2253/202Y02C20/40
Inventor 任世斌孙凯铖林勇强胡黛玉韩得满
Owner TAIZHOU UNIV
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