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Carbazolyl-containing unsymmetrical photochromicsm di-fragrant alkene monomer or polymer and electrochemical polymerization preparation method thereof

A photochromic and asymmetric technology, applied in chemical instruments and methods, organic chemistry, color-changing fluorescent materials, etc., can solve the problems of low yield, high cost, cumbersome polymerization methods, etc. Stability, significant effect of fatigue resistance

Inactive Publication Date: 2012-03-14
JIANGXI SCI & TECH NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many chemical methods to polymerize carbazole, those methods always have many disadvantages, such as cumbersome polymerization method, low yield and high cost

Method used

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  • Carbazolyl-containing unsymmetrical photochromicsm di-fragrant alkene monomer or polymer and electrochemical polymerization preparation method thereof
  • Carbazolyl-containing unsymmetrical photochromicsm di-fragrant alkene monomer or polymer and electrochemical polymerization preparation method thereof
  • Carbazolyl-containing unsymmetrical photochromicsm di-fragrant alkene monomer or polymer and electrochemical polymerization preparation method thereof

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Experimental program
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Embodiment 1

[0022] Example 1: [Compound 1a]:

[0023] In the general formula, when R is hydrogen, the photochromic compound 1a is constituted, and its name is: poly[1-(2-methylthiophen-3-yl), 2-[2-methyl-5-( N-n-hexylcarbazole) thiophen-3-yl)] perfluorocyclopentene (1a), the structural formula is as follows:

[0024]

[0025] Its synthetic scheme is shown in Scheme 1:

[0026]

[0027] Concrete synthetic steps are as follows:

[0028] 1. 3,5-Dibromo-2-methylthiophene (1)

[0029] Under ice-bath conditions, dissolve 5-methylthiophene (4) (25.617g, 261.4mmol) in acetic acid, add dropwise acetic acid containing liquid bromine under stirring, continue the ice-bath reaction for 8hr., add water solution , the aqueous phase uses Na 2 After neutralization, extract with ether, combine the organic phases, and wash with saturated Na 2 and aqueous solution successively, anhydrous MgSO 4 Drying, filtration, rotary evaporation to remove the solvent, distillation under reduced pressure, ...

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Abstract

The invention discloses a dissymmetrical photochromic diaryl monomer or polymer comprising a carbazolyl and an electrochemical polymerization preparation method thereof. The monomer can maintain excellent photochromic performances both in a liquid or in a film; moreover, both opened ring state (colorless state) and closed ring state (assuming in a color state) have the characteristics of excellent chemical and thermal stability, remarkable fatigue resistivity and higher sensitivity and the like. Moreover, the monomer has pointed absorption wavelength, changes different substitutional groups and can control the range of the absorption wavelength thereof better, thereby being matched with the lasers with different wavelengths and used for researching multi-wavelength optical information storage medium.

Description

technical field [0001] The invention relates to a carbazole group-containing asymmetric photochromic diarylene monomer or polymer and an electrochemical polymerization preparation method thereof. Background technique [0002] The information technology industry is the leading industry in the development of the national economy, and information storage is an important pillar of the information industry and a guarantee for the effective application of information. Optical storage is an important information storage technology developed rapidly after magnetic storage. For optical storage materials, rare earth-transition metal alloys, oxide magneto-optical materials, organic dyes and photochromic materials are commonly used. Most of the optical discs produced by this technology are read-only optical discs, which will inevitably cause inconvenience in use and waste of resources. In recent years, organic photochromic molecules have attracted widespread attention. It has been foun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D409/08C09K9/02
Inventor 蒲守智范丛斌刘卫军缪文娟
Owner JIANGXI SCI & TECH NORMAL UNIV