Furaldehyde-triphenylamine Schiff base and furaldehyde-triphenylamine poly Schiff base as well as preparation methods thereof

A technology of triphenylamine poly-Schiff base and triphenylamine-Schiff base, which is applied in the field of Schiff base and poly-Schiff base and its preparation, and can solve problems such as low adhesion, difficult coating processing, and difficult poly-Schiff base polymers, etc. problem, to achieve good adhesion effect

Inactive Publication Date: 2011-10-12
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to solve the furan formaldehyde-triphenylamine poly-Schiff base obtained by the chemical oxidation method adopted in the prior art. Since the Schiff base monomer is soluble and the poly-Schiff base polymer is insoluble, spin coating method and spray coating method are used to solve the problem. , casting method and other conventional film-forming methods are difficult to achieve coating processing, the adhesion is small after film formation, and it is easy to fall off, and furfuralaldehyde-triphenylamine Schiff base and furfuralaldehyde-triphenylamine poly-Schiff base and their preparation are provided method

Method used

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  • Furaldehyde-triphenylamine Schiff base and furaldehyde-triphenylamine poly Schiff base as well as preparation methods thereof
  • Furaldehyde-triphenylamine Schiff base and furaldehyde-triphenylamine poly Schiff base as well as preparation methods thereof
  • Furaldehyde-triphenylamine Schiff base and furaldehyde-triphenylamine poly Schiff base as well as preparation methods thereof

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specific Embodiment approach 1

[0028] Specific embodiment one: the present invention adopts the method for electrochemical polymerization, and specific implementation steps are as follows:

[0029] 1. Synthesis of monomers: Dissolve monoaminotriphenylamine in an organic solvent, then add furyl formaldehyde, and then add catalyst glacial acetic acid; then heat and stir under nitrogen protection to 110°C~112°C, and at 110°C~112°C Condensation and reflux reaction at ℃ for 3-5 hours to obtain a transparent orange-yellow solution. Distill the obtained transparent orange-yellow solution under reduced pressure to obtain a solid. Recrystallize the obtained solid for 1-3 times and dry it in vacuum to obtain N-furan Methylene-N'-diphenyl-N'-4-aniline solid; the molar ratio of the monoaminotriphenylamine and furan formaldehyde is 1: (1-3); the organic solvent is toluene, dimethyl Formamide, tetrahydrofuran, dimethylacetamide or N-methylpyrrolidone; the molecular formula of the N-furyl methylene-N'-diphenyl-N'-4-anilin...

specific Embodiment approach 2

[0035] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the molar ratio in the step one is: monoaminotriphenylamine: furfural = 1: 1.5. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0036] Embodiment 3: This embodiment has the same point as Embodiment 1 or Embodiment 2: in step 1, the reaction time of condensation and reflux at 110° C. to 112° C. is 4 hours. Others are the same as those in the first or second embodiment.

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Abstract

The invention provides a furaldehyde-triphenylamine Schiff base and a furaldehyde-triphenylamine poly Schiff base as well as preparation methods thereof and relates to a Schiff base and a poly Schiff base as well as preparation methods thereof, wherein the Schiff base, poly Schiff base and method provided by the invention are used for solving the problems that in the furaldehyde-triphenylamine poly Schiff base obtained by a chemical oxidation method in the prior art, the Schiff base monomer is dissoluble, the poly Schiff base polymer is difficultly dissolved, and coating film processing is difficultly achieved. The molecular formulas of the two types of Schiff bases produced in the invention are shown in the specification, and the structural general formulas of the two types of Schiff bases are shown in the specification. In the preparation method, an electrochemistry polymerization method is adopted. The method comprises the following specific steps: 1, synthesis of monomers; and 2, synthesis of a polymer. The furaldehyde-triphenylamine poly Schiff base produced by the method can be used as a PH sensing material, an air-sensitive material, an electrochromism material, a hole transportation material, a non-linear optical material and other photoelectric materials as well as an anticorrosive material.

Description

technical field [0001] The invention relates to a Schiff base and a poly-Schiff base and a preparation method thereof. Background technique [0002] Entering the information age, organic electronics, as an emerging subject, has achieved rapid development. The combination of organic electronics, organic chemistry, materials science and other disciplines has produced a number of new materials with excellent optoelectronic properties, covering many fields including display materials, military camouflage materials, information storage materials, sensing materials, anti-corrosion materials and smart materials. field. Once introduced into the field of display and sensing, the polySchiff base with acid-induced and electrochromic properties will surely show vigorous vitality, showing outstanding advantages and broad development and application prospects in the fields of display and sensing. The furan formaldehyde-triphenylamine poly-Schiff base obtained by the chemical oxidation m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/52C25B3/10C25B3/29
Inventor 牛海军李斌白续铎
Owner HEILONGJIANG UNIV
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