Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of multifunctional metalloporphyrin complex, its preparation method and polycarbonate preparation method

A technology of metalloporphyrins and complexes, applied in the fields of multifunctional metalloporphyrin complexes and their preparation, and the preparation of polycarbonate, which can solve problems such as many cyclic by-products, insufficient activity, and difficulty in controlling the composition ratio of polymerization products. , to achieve high catalytic activity

Active Publication Date: 2022-07-15
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since Inoue realized the copolymerization of carbon dioxide and propylene oxide for the first time in 1969, people have studied various catalytic systems, but these catalysts have more or less insufficient activity, and there are many cyclic by-products in the polymerization process, and the composition ratio of polymerization products is difficult to control and other shortcomings

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of multifunctional metalloporphyrin complex, its preparation method and polycarbonate preparation method
  • A kind of multifunctional metalloporphyrin complex, its preparation method and polycarbonate preparation method
  • A kind of multifunctional metalloporphyrin complex, its preparation method and polycarbonate preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0068] The invention provides a preparation method of the multifunctional metalloporphyrin complex described in the above technical scheme, comprising the following steps:

[0069] Reacting the multifunctional ligand having the structure of formula III with an organic compound containing M and X groups to obtain a multifunctional metalloporphyrin complex having the structure of formula I;

[0070] The M is magnesium, aluminum, zinc, chromium, manganese, iron, cobalt, titanium, yttrium, nickel or ruthenium;

[0071] Described X is halo, -NO 3 , CH 3 COO-, CCl 3 COO-, CF 3 COO-, ClO 4 -, BF 4 -, BPh 4 -, -CN, -N 3 , p-methylbenzoate, p-toluenesulfonate, o-nitrophenol anion, p-nitrophenol anion, m-nitrophenol anion, 2,4-dinitrophenol anion, 3,5 Dinitrophenol oxygen anion, 2,4,6-trinitrophenol oxygen anion, 3,5-dichlorophenol oxygen anion, 3,5-difluorophenol oxygen anion, 3,5-di-trifluoromethyl Phenoxy anion or pentafluorophenol anion;

[0072]

[0073] R' is a substi...

preparation example 1

[0091] 15g (120mmol) of 3-hydroxybenzaldehyde, 68.1g (370mmol) of 4-bromobenzaldehyde and 33g (490mmol) of pyrrole were added to 500mL of propionic acid, heated to about 130°C, refluxed for 1.5h, and cooled after the reaction was completed. After reaching room temperature, the reaction solution was concentrated to 200 mL, methanol was added, and the mixture was cooled in a refrigerator overnight. The resulting product was filtered and subjected to silica gel column chromatography (CHCl). 3 / CH 3 OH) to obtain the product EL1 in a yield of about 7.8%. 1 H-NMR (CDCl 3 ,ppm): 8.9, 8.8, 8.1, 7.8, 7.2, -2.8. High-resolution electrospray mass spectrometry analysis, the analysis result is [C44H27Br3N4O]: 863.97, found: 863.86;

[0092] Under nitrogen protection, 2g (2.3mmol) EL1 was dissolved in 20mL anhydrous THF, 0.26g (2.5mmol) methacryloyl chloride and 0.25g (2.5mmol) triethylamine were added dropwise at low temperature, and the mixture was stirred thoroughly. The above mixtu...

preparation example 2

[0097] Under nitrogen protection, 1 g (1.07 mmol) EL2, 0.17 g (1.07 mmol) dimethylaminoethyl methacrylate (DMAEMA), 8.78 mg (5.35×10 -2mmol) azobisisobutyronitrile (AIBN) and 38.98 mg (0.107 mmol) RAFT reagent (DDMAP) were dissolved in 20 mL of anhydrous THF, freeze-pump-thaw three times to remove oxygen, and then the above mixture was heated to 70 ° C and reacted for 36 h . After the reaction was completed, the reaction vessel was quenched and thawed in liquid nitrogen, and the precipitation was repeatedly dissolved in the dichloromethane / diethyl ether system, and 0.72 g of the multifunctional porphyrin ligand EL4 was obtained by separation. 1 H NMR nuclear magnetic resonance and GPC test showed that m was 9 and n was 10;

[0098] Under nitrogen protection, the above ligand EL4 was dissolved in dichloromethane, and AlEt was added dropwise. 2 Cl (diethylaluminum chloride), and the reaction was stirred at room temperature for 2h. The resulting product was purified by column ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
molecular weight distributionaaaaaaaaaa
molecular weight distributionaaaaaaaaaa
Login to View More

Abstract

The invention provides a multifunctional metalloporphyrin complex, a preparation method thereof and a preparation method of polycarbonate, and the complex has the structure of formula I. The present invention is prepared by random copolymerization of porphyrin monomers and specific organic base monomers, and the scheme can rapidly prepare porphyrin complexes containing multiple active centers. Compared with the prior art, the interaction between the active center and the organic base and even the catalytic performance can be adjusted by changing the substituent of the porphyrin monomer, the ratio of the porphyrin monomer to the organic base monomer and the type of the organic base. The catalyst exhibits high catalytic activity, product selectivity and high temperature stability when catalyzing the copolymerization of carbon dioxide and alkylene oxide;

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to a multifunctional metalloporphyrin complex and a preparation method thereof and a preparation method of polycarbonate. Background technique [0002] In industrial production, carbon dioxide is not only a greenhouse gas, but also a non-toxic and harmless carbon and oxygen resource. The polycarbonate prepared by alternating copolymerization with epoxide has full degradability, and it also provides a good substitute for the increasingly scarce non-renewable resources such as petroleum. It is an important means of carbon dioxide utilization. Not only that, the obtained polycarbonate has excellent transparency and excellent barrier properties, and can be used as engineering plastics, disposable medicine and food packaging materials, adhesives and the like. [0003] Since Inoue first realized the copolymerization of carbon dioxide and propylene oxide in 1969, various ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/34C08F8/42C08G64/34
CPCC08F8/42C08F220/34C08G64/34
Inventor 张若禹刘顺杰曹瀚王献红
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com