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

Novel polytriazole resins with rigid structure and preparation method thereof

A technology of polytriazole resin and rigid structure, applied in the field of resin, can solve problems such as no research reports, and achieve the effect of good mechanical properties and high glass transition temperature

Inactive Publication Date: 2012-03-28
EAST CHINA UNIV OF SCI & TECH
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no further follow-up studies have been reported

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
  • Novel polytriazole resins with rigid structure and preparation method thereof
  • Novel polytriazole resins with rigid structure and preparation method thereof
  • Novel polytriazole resins with rigid structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of PATA-1

[0040] (1) Synthesis of 4,4' diazide diphenylmethane

[0041]Add 210mL of deionized water and 120mL of concentrated hydrochloric acid to a 1000mL four-necked round-bottomed flask containing 5.94g (30mmol) of 4,4'diaminodiphenylmethane, and stir to control the temperature of the mixture at 0-5°C. Add 90mL of an aqueous solution containing 6.18g (90mmol) of sodium nitrite, which turns light yellow, and the reactant is gradually homogeneous under constant stirring, turning light yellow or white. After stirring for 1 hour, the temperature is still controlled at 0-5°C, and then added dropwise 90mL of an aqueous solution containing 4.86g (75mmol) of sodium azide, the system was light red, and nitrogen gas was observed to be generated, the color was gradually brownish yellow, and precipitation occurred, and the stirring was stopped after 6h, and the reactant was allowed to stand for 12h, filtered, filtered The cake was washed with deionized water and d...

Embodiment 2

[0046] Preparation of PATA-2

[0047] (1) Synthesis of 4,4'-diazide diphenyl ether

[0048] Add 210mL of deionized water and 120mL of concentrated hydrochloric acid to a 1000mL four-necked round-bottomed flask containing 6.00g (30mmol) of 4,4'diaminodiphenyl ether, stir, and control the temperature of the mixture at 0-5°C, drop Add 90mL of an aqueous solution containing 6.18g (90mmol) of sodium nitrite, which turns light yellow, and the reactant is gradually homogeneous under constant stirring, turning light yellow or white. After stirring for 1 hour, the temperature is still controlled at 0-5°C, and then added dropwise 90mL of aqueous solution containing 4.86g (75mmol) sodium azide, the system was yellow, and it was observed that nitrogen gas was generated, the color was gradually brownish yellow, and precipitation appeared. Stirring was stopped after 6 hours, and the reactant was left to stand for 12 hours, filtered, and the filter cake was washed with deionized water, and ...

Embodiment 3

[0053] Preparation of PATA-3

[0054] (1) Synthesis of 4,4'-diphenylsulfone diazide

[0055] Add 210mL of deionized water and 120mL of concentrated hydrochloric acid to a 1000mL four-necked round-bottomed flask containing 7.44g (30mmol) of 4,4'diaminodiphenylsulfone, and stir to control the temperature of the mixture at 0-5°C. Add 90mL of aqueous solution containing 6.18g (90mmol) sodium nitrite, it is light yellow, and the reactant is gradually homogeneous under continuous stirring, and it is light yellow or white. After stirring for 1 hour, the temperature is still controlled at 0~5℃, and then add 90mL of aqueous solution containing 4.86g (75mmol) sodium azide, the system was white, and it was observed that nitrogen gas was generated, the color gradually became light yellow, and precipitation appeared. Stirring was stopped after 6 hours, and the reactant was left to stand for 12 hours, filtered, and the filter cake was washed with deionized water, and dried to obtain a ligh...

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
Melting pointaaaaaaaaaa
Tgaaaaaaaaaa
Shear strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to novel polytriazole resins with a rigid structure and a preparation method thereof. In the method, aryl azides are obtained by the diazotization and azido reaction of aromatic amine compounds, and then the aryl azides are subjected to 1,3-dipolar cycloaddition with tetrapropargyl compounds to prepare the novel polytriazole resins with the rigid structure. With fewer fatty hydrocarbon structures and higher high-temperature resistance and mechanical properties, the novel polytriazole resins with the rigid structure, which are disclosed by the invention, are expected to be widely used as resin substrates of aerospace structure materials and the like.

Description

【Technical field】 [0001] The invention relates to the technical field of resins, in particular to a novel polytriazole resin with rigid structure and a preparation method thereof. 【Background technique】 [0002] Polytriazole resin is a kind of polymer containing triazole ring formed by 1,3-dipolar cycloaddition reaction of azide compound and alkynyl compound. The polytriazole resin has good processability, and the curing reaction can occur at a relatively low temperature such as 70°C, and the cured resin has good thermal stability. [0003] In the late 1960s, it was found that bifunctional compounds with both azido and alkynyl groups in their molecules and structures can undergo intramolecular 1,3-dipolar cycloaddition reactions to form a main chain containing 1,2, Linear polymers of 3-triazole rings, polymers of this type have good thermal stability [[1] K.E.Johnson, J.A.Lovinger, C.O.Parker, et al., Polym Lett, 1966, 4(12), 977 [2] M.G. Baldwin, K.E. Johnson, J.A. Loving...

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
IPC IPC(8): C08G73/08C08L79/06C08K7/06C08K3/04
Inventor 杜磊黄发荣万里强李瑜婧周浩鄂彦鹏
Owner EAST CHINA UNIV OF SCI & TECH
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