Triphenylamine-based polymer containing benzoxazine structure, as well as preparation method and application thereof

A technology based on triarylamines and benzoxazines, applied in chemical instruments and methods, analysis through chemical reactions of materials, fluorescence/phosphorescence, etc., can solve the problem of poor film adhesion and durability of electrochromic polymer films Poor thermal performance and other problems, to achieve excellent electrochromic performance, excellent memory performance, and improve the effect of bonding strength

Active Publication Date: 2019-04-09
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems of poor heat resistance and poor film adhesion of electrochromic polymer films in th...

Method used

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  • Triphenylamine-based polymer containing benzoxazine structure, as well as preparation method and application thereof
  • Triphenylamine-based polymer containing benzoxazine structure, as well as preparation method and application thereof
  • Triphenylamine-based polymer containing benzoxazine structure, as well as preparation method and application thereof

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specific Embodiment approach 1

[0042] Specific embodiment 1: In this embodiment, the triarylamine-based polymer containing a benzoxazine structure is a triarylamine-based polymer containing a benzoxazine structure P1 or a triarylamine-based polymer containing a benzoxazine structure P2;

[0043] The structural formula of the triarylamine-based polymer P1 containing a benzoxazine structure is as follows:

[0044] In the formula, n is an integer of 3 to 10;

[0045] The structural formula of the triarylamine-based polymer P2 containing a benzoxazine structure is as follows:

[0046] , where n is an integer from 3 to 10.

[0047] In this embodiment, triphenylamine-based monomers are first prepared. In this embodiment, N,N-diphenyl-1,4-phenylenediamine and N,N'-diphenyl-biphenylenediamine are used as raw materials and then It reacts with p-fluoronitrobenzene to achieve nitration, and then reduces the nitro group to amino group. Using bisphenol A, paraformaldehyde, and triphenylamine-based monomers as raw ...

specific Embodiment approach 2

[0054] Specific embodiment two: the preparation method of triarylamine-based polymer P1 containing benzoxazine structure in this embodiment is as follows: 1. Synthesis of N, N'-bis(4-aminophenyl)-N, N'-diphenyl Base-1,4-phenylenediamine monomer: ①, in N 2 Under the atmosphere, put N,N-diphenyl-1,4-phenylenediamine monomer, sodium hydride and anhydrous N,N-dimethylformamide in a three-necked flask, and stir at 1~2 per second Add p-fluoronitrobenzene at the dropping rate, raise the temperature to 114-115°C, carry out constant temperature reaction, and then cool down; put the reaction product in water at 24-25°C until the crude product is precipitated, then filter the crude product, and use 99-100 Wash the crude product with water at ℃ for 2 to 3 times, dry the obtained crude product in a vacuum drying oven, and then recrystallize with ethanol, filter out the crystallized product after recrystallization, and vacuum dry the crystallized product to obtain a yellow powder M1; where...

specific Embodiment approach 3

[0060] Specific embodiment 3: The difference between this embodiment and specific embodiment 2 is that the yellow powder M1 described in step ① is N, N'-bis(4-nitrophenyl)-N, N'-diphenyl -1,4-Phenylenediamine. Others are the same as in the second embodiment.

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Abstract

The invention provides a triphenylamine-based polymer containing a benzoxazine structure, as well as a preparation method and application thereof, and aims at solving the problems that an existing triphenylamine-based polymer has poor heat resistance and an electrochromic polymer film has poor film attachment performance. The preparation method comprises the following steps: reacting raw materialsincluding N,N-diphenyl-1,4-phenylenediamine and N,N'-diphenyl-benzidine with p-fluoronitrobenzene to realize nitration; reducing nitryl into amino, and synthesizing a polymer by using bisphenol A, paraformaldehyde and the prepared triphenylamine monomer as raw materials through a condensation reaction under a certain condition. The polymer has excellent electrochromic performance and memory performance, can be applied to the field of electrochromism, has good presence in explosive detection, and can be applied to the field of electrochromic polymers.

Description

technical field [0001] The invention relates to a triarylamine-based polymer containing a benzoxazine structure, a preparation method and application thereof. Background technique [0002] Electrochromic polymers are polymers that change color when the voltage or current is changed. Conductive polymers such as polythiophene, polypyrrole, polyacetylene, and some liquid crystal polymers can be used as electrochromic materials. The conductive polymer itself is a delocalized conjugated structure, and the energy gap between the valence band and the conduction is very small. If the polymer is doped (an ionic compound of an electron donor or acceptor), the energy band structure will also follow. Changes occur, and by applying an external electric field, the absorption of light is further changed, resulting in a change in color. As an emerging functional polymer material, electrochromic polymers have broad application prospects. [0003] At present, electrochromic polymers still ...

Claims

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Application Information

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IPC IPC(8): C08G14/073C09K9/02G01N21/64G01N21/78
CPCG02F1/15G01N21/6428G01N21/78C09K9/02C07D265/16C09K2211/1033
Inventor 牛海军王岩张志鹏路庆义张旭
Owner HEILONGJIANG UNIV
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