Supercharge Your Innovation With Domain-Expert AI Agents!

Method for preparing co-polymer luminescent material by electrochemical polymerization

A technology of luminescent materials and polymerization methods, which is applied in the field of preparation of copolymer luminescent materials, can solve the problems of cumbersome steps, high cost, and increased costs, and achieve the effects of wide range of monomers, easy industrial production, and low cost

Inactive Publication Date: 2009-03-25
ZHEJIANG UNIV OF TECH
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former requires the use of expensive catalysts (NiCl 2 (dppp), PdCl 2 (PPh 3 ) 2 , Pd(PPh 3 ) 4 etc.) and monomers (aryl boronic acid, etc.), the cost is relatively high, which undoubtedly greatly increases the cost and limits large-scale production; and the latter generally first needs to design and synthesize suitable monomers, and then carry out polymerization
The first step of monomer design itself is a relatively complicated research topic, and the second step of polymerization reaction is required, which is relatively cumbersome.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Electrochemical Copolymerization of 9,9'-Dihexylfluorene and Thiophene

[0023] Dissolve 9,9′-dihexylfluorene (0.01mol / L) and thiophene (0.1mol / L) in acetonitrile, and add tetrabutylammonium perchlorate 10 -2 mol / L, as an electrolyte. Add it to a three-electrode electrolytic cell, in which the working electrode is ITO glass; the counter electrode is platinum sheet; the reference electrode is silver-silver chloride electrode. Polymerization was carried out by a constant potential method, and the polymerization potential was 1.3V. Polymerization time 2h. After the polymerization is completed, the polymer on the ITO glass is scraped off, washed with absolute ethanol for 30 seconds, filtered, and vacuum-dried to obtain a copolymer powder.

Embodiment 2

[0025] Electrochemical Copolymerization of 9,9'-Dioctylfluorene and 3,4-Didecylthiophene

[0026] Dissolve 9,9′-dioctylfluorene (0.1mol / L) and 3,4-didecylthiophene (0.01mol / L) in acetonitrile, and add tetrabutylammonium perchlorate 10 -2 mol / L, as an electrolyte. Add it to a three-electrode electrolytic cell, in which the working electrode is ITO glass; the counter electrode is platinum sheet; the reference electrode is silver-silver chloride electrode. The polymerization was carried out by a constant potential method, and the polymerization potential was 1.1V. Polymerization time 1h seconds. After the polymerization is completed, the polymer on the ITO glass is scraped off, washed with absolute ethanol for 30 seconds, filtered, and vacuum-dried to obtain a copolymer powder.

Embodiment 3

[0028] Electrochemical Copolymerization of N-Butylcarbazole and 3-Butylthiophene

[0029] Dissolve N-butylcarbazole (0.1mol / L) and 3-butylthiophene (0.1mol / L) in boron trifluoride ether, join in the three-electrode electrolytic cell, wherein working electrode is ITO glass; The electrode is a platinum sheet; the reference electrode is a silver-silver chloride electrode. The polymerization was carried out by a constant potential method, and the polymerization potential was 1.1V. Polymerization time 48h. After the polymerization is completed, the polymer in the electrolytic cell is precipitated with methanol, filtered, washed with methanol, and vacuum-dried to obtain a copolymer powder.

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 a method for preparing a copolymer luminescent material through electrochemical polymerization. Two types of monomers are adopted in the preparation method. Congjugate homopolymers obtained by the respective homopolymerization of the two types of monomers contain different energy gaps. The two types of monomers, an electrolysis solvent and supporting electrolyte are added into a three-electrode cell to form an electrolyte. A potentiostatic method is adopted for carrying out polymerization and a copolymer solution is obtained, or a copolymer film is obtained by sediment on a working electrode, and then the copolymer luminescent material is obtained through aftertreatment. The preparation method of the copolymer luminescent material can effectively regulate the emitting color of the copolymer luminescent material, is simple, practical, low in cost, and is easy for industrialized production.

Description

(1) Technical field [0001] The invention relates to a preparation method of a copolymer luminescent material. (2) Background technology [0002] The luminescence of polymers is a phenomenon of radiative transition of molecules from the excited state back to the ground state. When a polymer molecule absorbs energy, its electrons jump from a lower energy level to a higher energy level, becoming an electronically excited state molecule. The molecule in the excited state is unstable, and when it returns to the ground state through the process of radiative transition decay, it will be accompanied by the emission of photons, showing the phenomenon of luminescence. [0003] In 1990, the Burroughes group of the University of Cambridge published the electroluminescent properties of poly-p-phenylene vinylene (PPV), which opened up a new field of light-emitting device research—polymer thin film electroluminescent devices (PLEDs) (J.H.Burroughes, D.D.C.Bradley, A.R. Brown, R.N. Marks,...

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): C09K11/06C08G61/12
Inventor 张诚王纳川徐意马淳安
Owner ZHEJIANG UNIV OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com