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Polyimide derivatives containing carbazolamine 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, transparency, and excellent mechanical properties

Inactive Publication Date: 2020-06-09
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 greatly limits the use of polyimide materials in the industry. application on

Method used

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  • Polyimide derivatives containing carbazolamine structure and naphthalene imide fluorescent group, preparation method and application thereof
  • Polyimide derivatives containing carbazolamine structure and naphthalene imide fluorescent group, preparation method and application thereof
  • Polyimide derivatives containing carbazolamine 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 carbazolamine 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 derivative prepar...

specific Embodiment approach 2

[0038] Specific embodiment two: the preparation method of polyimide derivatives containing carbazolamine structure and naphthalimide fluorescent group in this embodiment is:

[0039] 1. Synthesis of polyimide precursors containing carbazolamine structure

[0040] Mix carbazolamine 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 a polyimide precursor;

[0041] 2. Preparation of polyimide derivatives containing carbazolamine structure and naphthalimide fluorescent group

[0042] Add polyimide precursor, solvent N-methylpyrrolidone, naphthalimide derivatives containing hydroxyl structure, isocyanate MDI and catalyst dibutyltin dilaurate into a three-n...

specific Embodiment approach 3

[0049] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the molar ratio of the carbazolamine diamine monomer, 3,3'-dihydroxyaniline, and hexafluorodianhydride in step 1 is 1:1 :2. It is the same as the second embodiment.

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Abstract

The invention provides a carbazolamine structure and naphthalimide fluorophore containing polyimide derivative and a preparation method and the application thereof. The preparation method comprises the steps of synthesizing a carbazolamine structure containing polyimide precursor and then preparing the carbazolamine structure and naphthalimide fluorophore containing polyimide derivative. The carbazolamine structure and naphthalimide fluorophore containing polyimide derivative is applied as photovoltaic materials, including an electrochromic material, a fluorescence sensing material, an acid sensing material, a hole transporting material, a third-order nonlinear material, an anti-counterfeiting material, a camouflaging material and an automobile rearview mirror material; the carbazolamine structure and naphthalimide fluorophore containing polyimide derivative can be also applied to ion detection, explosive detection and preparation of memory behavior originals. The invention relates tothe field of application of polyimide.

Description

technical field [0001] The invention relates to a polyimide derivative containing a carbazole amine 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, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/10
CPCC08G73/1042C08G73/1067
Inventor 牛海军赵硕张旭路庆义
Owner HEILONGJIANG UNIV
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