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

Polyaryl-ether-ketone viscosity regulator synthesized based on A2+B3 type monomer reaction and method therefor

A technology of viscosity modifier and polyaryletherketone, which is applied in the field of hyperbranched polyaryletherketone materials and its synthesis, can solve the problems of reducing the solvent resistance and thermal stability of the blend, and damaging the structural properties of the material, and achieves Solvent resistance and thermal stability, melt viscosity reduction, melt viscosity reduction effect

Inactive Publication Date: 2005-07-20
JILIN UNIV
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the solubility of this type of hyperbranched polyaryletherketone is very good. Using its unique structure, if it is blended with linear polyaryletherketone, it can reduce the melt viscosity, but because of its good solubility, it will Reduce the solvent resistance and thermal stability of the blend, and damage the structural properties of the material

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
  • Polyaryl-ether-ketone viscosity regulator synthesized based on A2+B3 type monomer reaction and method therefor
  • Polyaryl-ether-ketone viscosity regulator synthesized based on A2+B3 type monomer reaction and method therefor
  • Polyaryl-ether-ketone viscosity regulator synthesized based on A2+B3 type monomer reaction and method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: Synthesis of fluorine-terminated hyperbranched polyetheretherketone (HPEEK-F)

[0032] Will B 3Type monomer 1,3,5-tris[4-(4-fluorobenzoyl)phenoxy]benzene 7.21g (0.01mol), hydroquinone 0.792g (0.0072mol), anhydrous potassium carbonate 1.04g ( 0.0076mol), 31g of diphenyl sulfone, with a solid content of 29%, were put into a three-necked flask equipped with a stirring device, fed with nitrogen, stirred, and heated. Salt formation temperature is controlled at 175°C for 3 hours, prepolymerization at 235°C for 1 hour, reaction at 280°C for 2 hours, and reaction at 300°C for 2 hours. Discharge into deionized water, pulverize, wash, dry, reflux with acetone for 3 to 5 times until there is no diphenyl sulfone in the filtrate, then wash with methanol for 2 times, heat filter to remove small molecular weight hyperbranched polymers, dry, 6.5 g of hyperbranched polyether ether ketone (HPEEK-F) whose terminal group is terminated by fluorine was obtained, and the yield...

Embodiment 2

[0035] Example 2: Synthesis of hydroxyl-terminated hyperbranched polyetheretherketone (HPEEK-OH)

[0036] Will B 3 Type monomer 1,3,5-tris[4-(4-fluorobenzoyl)phenoxy]benzene 7.21g (0.01mol), hydroquinone 3.35g (0.03045mol), anhydrous potassium carbonate 4.2g ( 0.03045mol), 59g diphenyl sulfone, with a solid content of 25%, put into a three-necked flask equipped with a stirring device, nitrogen, stirring, heating. Salt-forming temperature is controlled at 175°C for 2 hours, prepolymerization at 235°C for 1 hour, reaction at 280°C for 2 hours, and reaction at 300°C for 0.5 hour. Discharge into acidic deionized water (pH value 6.5-7), crush, wash, dry, reflux 3-5 times with acetone until there is no diphenyl sulfone in the filtrate, wash 2 times with methanol, and remove small particles by hot filtration. The molecular weight of the hyperbranched polymer was dried to obtain 7.6 g of hyperbranched polyether ether ketone (HPEEK-OH) whose terminal group was terminated by a hydroxy...

Embodiment 3

[0039] Example 3: Synthesis of fluorine-terminated hyperbranched polyether ether ether ketone (HPEEEK-F)

[0040] Synthetic method and process are the same as embodiment 1, change hydroquinone into 4,4'-dihydroxydiphenyl ether. A hyperbranched polyether ether ether ketone (HPEEEK-F) whose terminal group is terminated by fluorine was obtained, and the yield was 80%.

[0041] The glass transition temperature Tg of HPEEEK-F is 121°C and the viscosity η iv It is 0.15 (dL / g).

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
glass transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The polyaryl ether ketone viscosity regulator is prepared with type-B3 monomer, diphenol monomer or phenol ended oligomer and potassium carbonate in certain proportion as main material, where the type-B3 monomer is 1, 3, 5-tri[4-(4-fluoro phenacyl) phenoxy], and diphenyl sulfone as solvent. The preparation process of the polyaryl ether ketone viscosity regulator includes mixing material, forming salt, prepolymerizing, condensation at 280-300 deg.c for 3.5-4.5 hr, and post-treatment. The present invention may regulate the dissolubility, heat performance and crystallization performance of super-branched polyaryl ether ketone via altering the structure and length of A2 unit. The polymer product of the present invention has excellent solvent resistance and corrosion resistance, and is suitable for use as the viscosity regulator in linear polyaryl ether ketone processing.

Description

technical field [0001] The invention belongs to the field of polymer materials and preparation thereof, in particular to a hyperbranched polyaryletherketone material and a synthesis method thereof. Background technique [0002] As a special engineering plastic, polyaryletherketone has excellent heat resistance, chemical corrosion resistance and good mechanical properties, and is widely used in high-tech fields such as aerospace, electronics and nuclear energy. However, as a semi-crystalline polymer, its high melting temperature and melt viscosity make it difficult to process and shape. [0003] As a new class of polymers, hyperbranched polymers have the characteristics of highly branched structure and low chain entanglement, and it has lower viscosity compared with linear polymers of the same molecular weight. Blending with traditional linear polymers can reduce the melt viscosity of polymers, improve the processing fluidity of polymers, reduce melt fracture, improve proces...

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): C08G65/40
Inventor 姜振华牟建新吴伟春陈杰李思均
Owner JILIN UNIV
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