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Polyimide derivatives containing triphenylamine structure and naphthalene imide fluorescent group, preparation method and application thereof

A technology of polyimide and naphthaleneimide, which is applied in the field of polyimide derivatives, can solve the problems of limiting the application of polyimide materials, poor film forming strength and transparency, and high processing difficulty, and achieve good wetting Ability, facilitated handling and application, effects of excellent mechanical properties

Active Publication Date: 2020-07-31
山东祥龙新材料股份有限公司
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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 greatly limits the use of polyimide materials in the industry. application on

Method used

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  • Polyimide derivatives containing triphenylamine structure and naphthalene imide fluorescent group, preparation method and application thereof
  • Polyimide derivatives containing triphenylamine structure and naphthalene imide fluorescent group, preparation method and application thereof
  • Polyimide derivatives containing triphenylamine structure and naphthalene imide fluorescent group, preparation method and application thereof

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specific Embodiment approach 1

[0033] Specific embodiment 1: In this embodiment, the structural formula of polyimide derivatives containing triphenylamine structure and naphthalimide fluorescent group is as follows:

[0034]

[0035] , where n is an integer from 3 to 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 the triphenylamine group, which has the ability to destroy the stacking performance, into the polyimide structure, not only can maintain the high thermal stability of the original polyimide, but also can 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 electroactive centers to facilitate the processing and application of the electrochromic device; the ...

specific Embodiment approach 2

[0038]Specific embodiment two: the preparation method of polyimide derivatives containing triphenylamine structure and naphthalene imide fluorescent group in this embodiment is as follows: 1. Synthesis of polyimide precursor containing triphenylamine structure

[0039] Mix the diamine monomer containing triphenylamine, 3,3'-dihydroxyaniline, hexafluorodianhydride and the solvent N-methylpyrrolidone, stir and reflux at room temperature for 5-10h, and the stirring speed is 800r / min~900r / min 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 a polyimide precursor;

[0040] 2. Preparation of polyimide derivatives containing triphenylamine structure and naphthalimide fluorescent group

[0041] Add polyimide precursor, solvent N-methylpyrrolidone, naphthalimide derivatives containing hydroxyl structure, isocyanate MDI and catalyst dibutylti...

specific Embodiment approach 3

[0048] Specific embodiment three: the difference between this embodiment and specific embodiment two is that the molar ratio of the diamine monomer containing triphenylamine, 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

A polyimide derivative containing a triphenylamine structure and a naphthalimides fluorophore and a preparation method and an application thereof. The invention relates to and provides the polyimide derivative containing the triphenylamine structure and the naphthalimides fluorophore and the preparation method and the application thereof, wherein the method includes steps of: synthesizing a polyimide precursor containing the triphenylamine structure and preparing the polyimide derivative containing the triphenylamine structure and the naphthalimides fluorophore. The material is applied, as a photoelectric material, to electrochromic materials, fluorescent sensing materials, acid-induced sensing materials, hole transfer materials, third-order nonlinear materials, anti-fake materials, camouflage materials, and automobile rearview mirror materials, can also be used for ion detection, explosive detection and preparation of original parts having memory performance. The invention belongs tothe field of polyimide.

Description

technical field [0001] The invention relates to a polyimide derivative containing a triphenylamine structure and a naphthalene imide fluorescent group, a preparation method and an 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 greatly limits the use of polyimide materials in the industry. on the application. Therefore, in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/10C09K9/02G01N21/64
CPCC08G73/1007C08G73/1085C09K9/02C09K2211/1466G01N21/643
Inventor 牛海军张旭赵硕路庆义
Owner 山东祥龙新材料股份有限公司
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