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

Hyperbranched polyphenyl triazole formate as well as preparation method and application thereof

A technology of polyphenyltriazole formate and phenylpropiolic acid tribasic ester, which is applied in the fields of polymer chemistry and material science, can solve the problems of limited application range, quenching, and weakened luminescence, and achieve good compatibility, Good thermal stability, the effect of preventing explosive attacks

Active Publication Date: 2017-11-07
SUZHOU UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of polymerization requires the use of metal catalysts, because the metal catalyst residue will affect the performance of the polymer, thus limiting the scope of application of this type of polymerization
[0004] In addition, traditional polymer luminescent materials often emit strongly in the dilute solution state, while the luminescence is weakened or completely quenched in the aggregated state, which limits the scope of use of such 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
  • Hyperbranched polyphenyl triazole formate as well as preparation method and application thereof
  • Hyperbranched polyphenyl triazole formate as well as preparation method and application thereof
  • Hyperbranched polyphenyl triazole formate as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Synthesis of monomers

[0041] Add 0.4604 g (5 mmol) glycerol, 4.6402 g (22.5 mmol) DCC, 0.3678 g (3 mmol) DMAP, 0.5702 g (3 mmol) to a 250 ml two-necked flask p -TsOH, pumping N 2Three times, 100 ml of DCM was added to dissolve. In an ice-water bath environment, 2.5574 g (17.5 mmol) of phenylpropylic acid was dissolved in 20 ml of DCM and slowly added to the reaction system. The reaction was stirred overnight at room temperature. After the reaction was completed, suction filtration was performed, the filtrate was spin-dried, and the crude product was separated and purified by column chromatography. After drying to constant weight, 1.7 g of light yellow solid was obtained (71.4% yield), which was the first monomer phenylpropiolic acid tribasic ester monomer. 1 H NMR (400 MHz, CDCl 3 ) , δ 7.61 (d, J = 6.4 Hz, 6H), 7.46 (d, J = 7.0 Hz,3H), 7.38 (t, J = 7.0 Hz, 6H), 5.52 (s, 1H), 4.52 (dt, J = 11.8, 7.4 Hz, 4H).

[0042] (2) Preparation of polymer

[004...

Embodiment 2

[0047] The phenylpropiolic acid tribasic ester monomer and the dibasic azide monomer are the same as in Example 1. Add 47.7 mg (0.1 mmol) of the first monomer phenylpropiolate triglyceride and 54 mg (0.15 mmol) of the second monomer binary organic azide to a 10 mL polymeric tube with a sidearm. Evacuate the polymer tube and fill it with N through the side arm 2 Three times, add 0.25 mL of dry DMF and stir to dissolve. The system was placed at 100°C for 2 h. After the reaction, it was cooled to room temperature, diluted with 5 mL of chloroform, and added dropwise to 200 mL of vigorously stirred n-hexane through a dropper plugged with cotton. Stand still, filter, and dry to constant weight to obtain a polymer. Yield: 77.8%. GPC results show: M w = 4600, PDI = 1.42, has good processability and thermal stability.

Embodiment 3

[0049] The phenylpropiolic acid tribasic ester monomer and the dibasic azide monomer are the same as in Example 1. Add 47.7 mg (0.1 mmol) of the first monomer phenylpropiolate triglyceride and 54 mg (0.15 mmol) of the second monomer binary organic azide to a 10 mL polymeric tube with a sidearm. Pump N into the polymer tube through the side arm 2 Three times, add 0.25 mL of dry DMF and stir to dissolve. The system was placed at 100°C for 4 h. After the reaction, it was cooled to room temperature, diluted with 5 mL of chloroform, and added dropwise to 200 mL of vigorously stirred n-hexane through a dropper plugged with cotton. Stand still, filter, and dry to constant weight to obtain a polymer. Yield: 97.5%. GPC results show: M w = 19200, PDI = 2.46, has good processability and thermal stability.

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

No PUM Login to View More

Abstract

The invention discloses hyperbranched polyphenyl triazole formate as ewll as a preparation method and application thereof. Phenylpropiolic acid triester and binary organic azide monomer are utilized to be heated and react for a certain time in a polar aprotic solvent to obtain the hyperbranched polyphenyl triazole formate. Reaction raw materials in the hyperbranched polyphenyl triazole formate disclosed by the invention are easy to obtain, no byproduct is generated in a polymerizing process, and atom economy is met; a substrate of polymerizing reaction has a wide application range and good compatibility with a functional group and can very easily lead functional radicals into; meanwhile, no metal catalyst is utilized in a polymer preparing process, and effects of catalyst residue on biological activity and photoelectric performance of the polymer are avoided. As the polymer contains a tetraphenyl ethylene structure, the polymer has better aggregation-induced emission performance; furthermore, the polymer can serve as a chemical sensor to detect multi-nitro aromatic-hydrocarbon explosives in high flexibility.

Description

technical field [0001] The invention belongs to the fields of polymer chemistry and material science, and in particular relates to a hyperbranched polyphenyltriazole formate and a preparation method and application thereof. Background technique [0002] Hyperbranched polymers are a class of macromolecules with three-dimensional structure and high branching, which have the characteristics of low viscosity, difficult to crystallize, good solubility, a large number of terminal functional groups and high reactivity. Due to their unique structure and properties, hyperbranched polymers have been widely used in coatings, additives, drug and catalyst carriers, optoelectronic materials and other fields. With the unremitting efforts of polymer chemists, more and more functional hyperbranched polymers have been synthesized. However, the preparation of these polymers often requires strict experimental conditions and the use of metal catalysts, and it is difficult to completely remove t...

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): C08G73/06C07C67/08C07C69/618
CPCC07C67/08C08G73/0644C07C69/618
Inventor 李红坤袁伟李永舫
Owner SUZHOU 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