Chain porphyrin polymer and synthetic method thereof

A porphyrin polymer and polymer technology, applied in the direction of organic compound/hydride/coordination complex catalysts, chemical instruments and methods, special compound water treatment, etc., can solve the problem of unsatisfactory treatment effect, difficulty in meeting discharge standards, etc. problem, achieve the effect of improving the catalytic effect and solving the secondary pollution

Inactive Publication Date: 2019-10-11
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

[0004] At present, biotechnology is considered to be the best method for treating organic wastewater, but the treatment of many organic compounds (such as toxic to microorganisms, inhibitory to microbial degradation and high residue, low concentration, refractory compounds) The effect is not ideal, and it is difficult to meet the requirements of standard discharge

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  • Chain porphyrin polymer and synthetic method thereof
  • Chain porphyrin polymer and synthetic method thereof
  • Chain porphyrin polymer and synthetic method thereof

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Embodiment Construction

[0021] A kind of chain porphyrin polymer of the present invention and its synthetic method are described in detail below.

[0022] First, the Adler method was used to prepare TPP, and the specific process was as follows:

[0023] Add propionic acid (120mL), DMSO (6mL) and benzaldehyde (5mL, 0.05mol) into a three-necked flask equipped with a reflux device, heat to reflux temperature (135°C), and slowly add freshly distilled pyrrole ( 3.5mL 0.05mol), after the dropwise addition, reflux for 30min. The reaction mixture was cooled to room temperature, filtered under reduced pressure, and the filter cake was washed with methanol until the filtrate was colorless, then washed with hot water until neutral, and vacuum-dried at 80°C for 12 hours to obtain a purple crude tetraphenylporphyrin. The crude product was subjected to column chromatography using CH 2 Cl 2 As eluent, further purification, yield: 2.39g, 31.12%.

[0024] The reaction formula is:

[0025]

[0026] Secondly, u...

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Abstract

A chain porphyrin polymer is a chain-structure polymer formed by alternate chaining of diaminophenyl porphyrin and terephthalaldehyde through aldehyde ammonia condensation polymerization. The chain porphyrin polymer and a preparation method thereof belongs to the field of macromolecular syntheses. The chain porphyrin polymer is used for catalyzing and degrading organic pollutants in wastewater. Asynthetic method of the chain porphyrin polymer utilizing macromolecular condensation polymerization reaction, wherein tetraphenylporphyrin is nitrified through fuming nitric acid to obtain dinitrophenyl porphyrin, then the dinitrophenyl porphyrin is reduced to the diaminophenyl porphyrin, under protection of N2, the diaminophenyl porphyrin obtained from separating by column chromatography and terephthalaldehyde are catalyzed by glacial acetic acid and subjected to terephthalaldehyde condensation to form Schiff base (-C=N-), and the chain-structure polymer with phenyl porphyrin as a structureunit is generated. The synthesized chain porphyrin polymer is high in thermal stability, recyclable and promising in application prospect.

Description

technical field [0001] The invention relates to a chain porphyrin polymer and a preparation method thereof, belonging to the field of condensation polymerization of organic functional polymers. First, TPP was prepared by the Adler method, and then TPP was nitrated with fuming nitric acid to obtain dinitrophenyl porphyrin, and then Na 2 S reduces dinitrophenylporphyrin to diaminophenylporphyrin, and finally reacts diaminophenylporphyrin with terephthalaldehyde to obtain a chain porphyrin polymer. The chain porphyrin polymer has good thermal stability, can be used for photocatalytic degradation of organic sewage, and can be recycled, so it has a good application prospect. [0002] technical background [0003] In the 21st century, energy and environmental issues have become the subject of the world's attention. How to reduce pollution, protect ecological balance, and solve environmental problems have attracted great attention from various government decision-making departments...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/22C07D519/00C08G73/06B01J31/06C02F1/30C02F101/30C02F101/34C02F101/38
CPCB01J31/063B01J35/004C02F1/30C02F2101/30C02F2101/34C02F2101/38C02F2305/10C07D487/22C07D519/00C08G73/06
Inventor 李艳辉方元庆李艳伟段潜
Owner CHANGCHUN UNIV OF SCI & TECH
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