Aromatic polyamide containing fluorine and diamine monomer containing fluorine based on naphthyridine ketone structure and method of producing the same

A technology of fluorine-containing diamine monomer and phthalazinone, which is applied in the field of fluorine-containing polyarylamide compound and its synthesis based on the structure of phthalazinone, can solve the problem of limiting the application of polyarylamide, the inability to melt process, Not suitable for solution processing and other problems, to achieve the effect of improving solubility, increasing rigidity, and good high temperature resistance

Inactive Publication Date: 2008-04-02
HUAQIAO UNIVERSITY
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, while polyaramid has unparalleled excellent properties, it also has insurmountable defects.
The melting temperature is higher than the decomposition temperature so that melt processing cannot be carried out, and the poor solubility makes it unsuitable for solution processing, which greatly limits the application of polyaramid

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
  • Aromatic polyamide containing fluorine and diamine monomer containing fluorine based on naphthyridine ketone structure and method of producing the same
  • Aromatic polyamide containing fluorine and diamine monomer containing fluorine based on naphthyridine ketone structure and method of producing the same
  • Aromatic polyamide containing fluorine and diamine monomer containing fluorine based on naphthyridine ketone structure and method of producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] (1) The best example of diamine monomer synthesis

[0025] In a 250ml flask equipped with a mechanical stirrer, condenser, thermometer, and water separator, add 4-(4-hydroxyphenyl)phthalazinone 30mmol, 2-chloro-5-nitrobenzotrifluorotoluene 61.5 mmol, anhydrous potassium carbonate 63mmol, DMAC (N,N-di-methylacetamide) 40ml, heated to 120°C under nitrogen protection, stirred for 12h, poured into 600ml of ice water after cooling, stirred and settled, there were a lot of light yellow solids Precipitate, filter and rinse with warm water several times, and then vacuum-dry the product at 40°C to obtain 16g of dinitro compound with a crude yield of 87%.

[0026] Add dinitro compound 2-(4-nitro-2-trifluoromethyl-phenyl)-4-[2 in the 250ml flask that mechanical stirrer, condenser, thermometer and constant pressure dropping funnel are housed, 3-Dimethyl-4-(4-nitro-2-trifluoromethyl-phenoxy) phenyl] phthalazin-1-one 25mmol, ethylene glycol methyl ether 100ml, catalyst Pd / C ( 0.5%)...

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
glass transition temperatureaaaaaaaaaa
thermal decomposition temperatureaaaaaaaaaa
decomposition temperatureaaaaaaaaaa
Login to view more

Abstract

The present invention discloses a poly aromatic amide compound containing fluorine and based on the structure of di-nitrone phthalazinone, a diamine monomer containing fluorine and the preparation method. The bisphenol type monomer with the structure of phthalazinone and the 2-chlorine-5-nitro toluene trifluoromethyl react to produce a dinitro compound through nucleophilic substitution; the dinitro compound is reduced to be diamine monomer containing fluorine. The poly aromatic amide uses diamine monomer containing fluorine and diacid for condensation and polymerization to get novel poly aromatic amide of good solubility; the specific viscosity is between 0.41dL/g to 0.87dL/g; the conversion rate of glass is above 302 DEG C; the decomposition temperature is above 437 DEG C. The high-molecule compound of the poly aromatic amide compound containing fluorine can be used for advanced technological fields such as aerospace, high-precision electronics and information industry and so on.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a novel fluorine-containing polyarylamide compound based on a phthalazinone structure with high temperature resistance and good solubility and a synthesis method. Background technique [0002] Polyarylamide is a kind of high-performance polymer material. Its structural feature is that the main chain is a rigid and fully aromatic structure, and hydrogen bonds are easily formed between the main chains. This determines that polyarylamide has incomparable resistance to other materials. Thermal, good flexibility, toughness, fluidity and mechanical strength and excellent comprehensive performance, widely used in fiber materials. Polyaramid fibers have the characteristics of ultra-high strength, ultra-high modulus, high temperature resistance and low specific gravity, and are widely used in cutting-edge technology fields such as aerospace, precision electronics, and information ...

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 Applications(China)
IPC IPC(8): C08G69/32C07D237/32
Inventor 程琳许震汪称意
Owner HUAQIAO UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap