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Polyimide derivatives containing bis-tetra-tert-butylaniline structure and naphthalene imide fluorescent group, preparation method and application thereof

A technology of tert-butyl aniline and tert-butyl phenyl is applied to polyimide derivatives containing bis-tetra-tert-butyl aniline structure and naphthalimide fluorescent group and the fields of preparation and application thereof, and can solve the problem of Poor film strength and transparency, high processing difficulty, poor solubility, etc., to achieve good wetting ability, excellent mechanical properties, and the effect of increasing solubility

Inactive Publication Date: 2019-09-10
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polyimide has excellent overall performance, traditional PI has some disadvantages, such as high processing difficulty, poor solubility, poor film strength and transparency, poor flexibility and easy cracking, etc., which limits the industrial application of polyimide materials. Applications

Method used

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  • Polyimide derivatives containing bis-tetra-tert-butylaniline structure and naphthalene imide fluorescent group, preparation method and application thereof
  • Polyimide derivatives containing bis-tetra-tert-butylaniline structure and naphthalene imide fluorescent group, preparation method and application thereof
  • Polyimide derivatives containing bis-tetra-tert-butylaniline structure and naphthalene imide fluorescent group, preparation method and application thereof

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specific Embodiment approach 1

[0033] Specific embodiment one: In this embodiment, the structural formula of polyimide derivatives containing bis-tetra-tert-butylaniline structure and naphthalimide fluorescent group is as follows:

[0034] ,

[0035] In the formula, n is an integer of 3-10.

[0036] This implementation mode expands the application range of electrochromic materials. The aromatic polyimide polymer material has aroused great interest of scientific researchers due to its excellent heat resistance and mechanical properties. Introducing triarylamine groups with disruptive stacking properties into the polyimide structure can not only maintain the high thermal stability of the original polyimide, but also increase its solubility and enhance the film-forming ability, which is not only conducive to the manufacture of large The thin film electrochromic device of the area also provides the electroactive center to facilitate the processing and application of the electrochromic device; the polyimide d...

specific Embodiment approach 2

[0038] Specific embodiment two: the preparation method of the polyimide derivative containing bis-tetra-tert-butylaniline structure and naphthalimide fluorescent group in this embodiment is as follows: 1. Synthesizing polyimide derivatives containing bis-tetra-tert-butylaniline structure Imine precursor

[0039] Mix bis-tetra-tert-butylaniline diamine monomer, 3,3'-dihydroxyaniline, hexafluorodianhydride and solvent N-methylpyrrolidone, stir and reflux for 5-10 hours at room temperature, and the stirring speed is 800r / min~ 900r / min, then add acetic anhydride and catalyst pyridine, heat up to 100-150°C, stir and reflux for 10-15h, pour into methanol after cooling, filter, and vacuum-dry the obtained solid phase to obtain polyimide front body;

[0040] 2. Preparation of polyimide derivatives containing bis-tetra-tert-butylaniline structure and naphthalimide fluorescent group

[0041] Add polyimide precursor, solvent N-methylpyrrolidone, naphthalimide derivatives containing hyd...

specific Embodiment approach 3

[0048] Specific embodiment three: the difference between this embodiment and specific embodiment two is: the molar ratio of bis-tetra-tert-butylaniline diamine monomer, 3,3'-dihydroxyaniline, and hexafluorodianhydride described in step one is 1:1:2. It is the same as the second embodiment.

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Abstract

The invention discloses a polyimide derivative with a di-tetra-tert-butyl phenylamine structure and a naphthalimide fluorescent group as well as a preparation method and application of the polyimide derivative. The invention relates to the polyimide derivative with the di-tetra-tert-butyl phenylamine structure and the naphthalimide fluorescent group as well as the preparation method and the application of the polyimide derivative. The invention provides the polyimide derivative with the di-tetra-tert-butyl phenylamine structure and the naphthalimide fluorescent group as well as the preparationmethod and the application of the polyimide derivative. According to the polyimide derivative, a polyimide precursor with the di-tetra-tert-butyl phenylamine structure is synthesized, and later the polyimide derivative with the di-tetra-tert-butyl phenylamine structure and the naphthalimide fluorescent group is prepared. As a photoelectric material, the material can be used as an electrochromic material, a fluorescent sensing material, an acid-induced sensing material, a hole-transport material, a third-order nonlinear material, an anti-faking material, a camouflage material and an automobilerearview mirror material, and can be also applied to ion detection, explosive detection and preparation of memory property elements. The polyimide derivative is applied to the polyimide field.

Description

technical field [0001] The invention relates to a polyimide derivative containing a bis-tetra-tert-butylaniline structure and a naphthalimide fluorescent group, a preparation method and application thereof. Background technique [0002] Polyimide (PI) is a kind of high-temperature-resistant polymer material with outstanding comprehensive performance. It has good chemical stability, excellent dielectric properties, excellent mechanical properties and radiation resistance, etc. Coatings, composite materials, insulating varnishes, and sound-absorbing materials are widely used in aerospace, electrochromic, precision machinery, microelectronics and other fields. Although polyimide has excellent overall performance, traditional PI has some disadvantages, such as high processing difficulty, poor solubility, poor film strength and transparency, poor flexibility and easy cracking, etc., which limits the industrial application of polyimide materials. Applications. Therefore, in rece...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/10C09K11/06G01N21/64
Inventor 牛海军张旭赵硕路庆义
Owner HEILONGJIANG UNIV
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