Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of polynaphthyl ether ketone aromatic amide and its preparation method and application

A technology of polynaphthyl ether ketone aromatic amide and methyl ketone, which is applied in the field of polymer materials, can solve the problems of limiting the application field of polyarylamide materials, not being able to melt process or solution process, reducing water absorption due to hydrophobicity, and achieving good industrialization prospects , simple method, excellent mechanical properties

Active Publication Date: 2020-07-03
JILIN UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the rigid aromatic ring structure of the polyaramid main chain, the hydrophobicity of the benzene ring greatly reduces its water absorption rate, and at the same time endows it with extremely high thermal stability, such as the glass transition temperature (Tg ) is as high as 300°C, and the melting temperature is higher than 500°C, but because of its high crystallinity and high thermal stability, it cannot be melted or solution processed, but can only be dissolved in concentrated sulfuric acid for spinning processing, however This processing method is costly and pollutes the environment, which greatly limits the application fields of polyaramid materials.

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 polynaphthyl ether ketone aromatic amide and its preparation method and application
  • A kind of polynaphthyl ether ketone aromatic amide and its preparation method and application
  • A kind of polynaphthyl ether ketone aromatic amide and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The present invention provides the preparation method of polynaphthyl ether ketone aromatic amide described in the above technical scheme, comprising the following steps:

[0032] Yamazaki Phosphoryl Chemical reaction to obtain polynaphthyl ether ketone aromatic amide.

[0033] In the present invention, unless otherwise specified, the required preparation materials are commercially available products well known to those skilled in the art.

[0034] The invention mixes 1,4-naphthalene dicarboxylic acid, bis(4-(4-aminophenoxy)phenyl)methanone, triphenyl phosphite, N-methylpyrrolidone, pyridine and lithium chloride. In the present invention, the bis(4-(4-aminophenoxy)phenyl)methanone is preferably according to the literature (Chin-Ping Yang and Feng-Zhi Hsiao, Journal of Polymer Research, 10:181-193,2003) synthesized by the method described. In the present invention, the molar ratio of 1,4-naphthalene dicarboxylic acid, bis(4-(4-aminophenoxy)phenyl)methanone and triphen...

Embodiment 1

[0047] In a 500mL three-necked flask equipped with a thermometer, a nitrogen port, a spherical condenser and a mechanical stirrer, add 6.918g of 1,4-naphthalene dicarboxylic acid, bis(4-(4-aminophenoxy)phenyl)methane Ketone 11.8935g, 130mLNMP and 43mL pyridine, obtain mixed material (solid content is 10%), then in described mixed material, add LiCl 15.6g and TPPi 17mL, heat up under the stirring speed of 125rad / s (heating rate is 5 ℃ / min) to 110°C, carry out the Yamazaki phosphorylation reaction for 3 hours, wait until the viscosity of the system rises to the apparent viscosity increase, keep the reaction at constant temperature for 3 hours to ensure that the polymerization is complete, stop stirring and heating, and pour the obtained polymer viscous into methanol at room temperature In the process, the thin strip solid was obtained by cooling and precipitation, and the thin strip solid was filtered and pulverized, and the pulverized powder was boiled with methanol for 1 h, wa...

Embodiment 2

[0052] In a 500mL three-necked flask equipped with a thermometer, a nitrogen port, a spherical condenser and a mechanical stirrer, add 6.5757g of 1,4-naphthalene dicarboxylic acid, bis(4-(4-aminophenoxy)phenyl)methane Ketone 11.8935g, 130mLNMP and 43mL pyridine, obtained mixed material (solid content is 10%), then in described mixed material, add LiCl 15.6g and TPPi 17mL, heat up under the stirring speed of 125rad / s (heating rate is 2 ℃ / min) to 130°C, carry out the Yamazaki phosphorylation reaction for 4 hours, wait until the viscosity of the system rises until the apparent viscosity increases, and react at a constant temperature for 4 hours to ensure that the polymerization is complete, stop stirring and heating, and pour the obtained polymer viscous into a room temperature container In methanol, cool and precipitate to obtain thin strip solids, filter the thin strip solids and pulverize them, boil the pulverized powders with methanol for 1 hour, wash them repeatedly for 6 ti...

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
tensile strengthaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of polymer materials, and particularly relates to a poly naphthalene ether ketone aromatic amide, a preparation method and applications thereof. Accordingto the present invention, the poly naphthalene ether ketone aromatic amide contains ether ketone and naphthalene, is an aromatic polyamide having a novel structure, can be directly dissolved in polarsolvents such as DMF, DMAc, DMSO, NMP and the like at a room temperature without co-solvent assisting, and is a soluble aromatic polyamide; the synthesis method is simple, has good controllability, and has good industrial prospects; and the polymer film is prepared from the poly naphthalene ether ketone aromatic amide, and has a tensile strength of up to 110 MPa and a Young modulus of 3.3 GPa so as to achieve excellent mechanical properties.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polynaphthyl ether ketone aromatic amide and its preparation method and application. Background technique [0002] Generally, aromatic polyamides in which more than 85% of the amide bonds are directly connected to benzene rings are called polyarylamides. Polyaramid is an excellent high-performance polymer material. Taking the successfully commercialized polyparaphenylene terephthalamide (PPTA)-aramid fiber 1414 as an example, it has a high concentration of amide bonds. Moreover, a high concentration of hydrogen bonds is formed between the amide bonds, which makes the aramid fiber 1414 highly oriented and regularly arranged, so it has high crystallinity and extremely high mechanical strength. In addition, in the rigid aromatic ring structure of the polyaramid main chain, the hydrophobicity of the benzene ring greatly reduces its water absorption rate, and at the same ...

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): C08G69/32C08G69/28C08J5/18C08L77/10
CPCC08G69/28C08G69/32C08J5/18C08J2377/10
Inventor 张海博徐达姜振华周晨义韩金轩姜子龙王兆阳
Owner JILIN UNIV