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A kind of preparation method and application of multifunctional polyurethane derivative

A polyurethane derivative, multi-functional technology, applied in chemical instruments and methods, fluorescence/phosphorescence, instruments, etc., can solve the problem of few functional types of multi-functional materials, and achieve good wetting ability, high thermal stability, and increased solubility. Effect

Active Publication Date: 2021-01-22
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing multifunctional materials have few types of functions, and provides a multifunctional polyurethane derivative and its preparation method and application

Method used

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  • A kind of preparation method and application of multifunctional polyurethane derivative
  • A kind of preparation method and application of multifunctional polyurethane derivative
  • A kind of preparation method and application of multifunctional polyurethane derivative

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specific Embodiment approach 1

[0044] Specific Embodiment 1: The multifunctional polyurethane derivative in this embodiment is a multifunctional polyurethane derivative containing triphenylamine and tetraphenylethylene groups or a multifunctional polyurethane derivative containing tert-butyl-substituted triphenylamine and tetraphenylethylene groups ;

[0045] Wherein the structural formula of the multifunctional polyurethane derivative containing triphenylamine and tetraphenylethylene group is as follows:

[0046] In the formula, n is an integer of 3 to 10;

[0047] The structural formula of the multifunctional polyurethane derivative containing triphenylamine and tetraphenylethylene group substituted by tert-butyl group is as follows:

[0048]

[0049] , where n is an integer from 3 to 10.

[0050] In this embodiment, the triarylamine group with the ability to destroy the stacking is introduced into the polyurethane structure, which can not only maintain the high thermal stability of the original po...

specific Embodiment approach 2

[0053] Specific embodiment two: the preparation method of multifunctional polyurethane derivatives in this embodiment is as follows: 1. 1,2-bis(4-hydroxyphenyl)-1,2-diphenylethylene and 4,4'-diphenyl Mix methane diisocyanate with the solvent N,N-dimethylacetamide (DMAC), stir and reflux at room temperature for 5-15 hours, and the stirring speed is 800r / min-900r / min to obtain a precursor; Add the diamine monomer of triphenylamine substituted by tert-butyl to the precursor prepared in step 1, raise the temperature to 70-120°C, stir and reflux for 5-15h, pour it into methanol after cooling, and filter the obtained solid phase The thing is vacuum-dried to obtain a multifunctional polyurethane derivative;

[0054] Diamine monomers containing triphenylamine or tert-butyl-substituted triphenylamine, 1,2-bis(4-hydroxyphenyl)-1,2-diphenylethylene, 4,4′-diphenylmethane diisocyanate The molar ratio is: (0.5-2.5):1:2;

[0055] The volume-to-mass ratio of the solvent N,N-dimethylacetamid...

specific Embodiment approach 3

[0056] Specific embodiment three: the difference between this embodiment and specific embodiment two is: the bisamine monomer containing triphenylamine or tert-butyl-substituted triphenylamine described in step one, 1,2-bis(4-hydroxybenzene base)-1,2-diphenylethylene, 4,4'-diphenylmethane diisocyanate molar ratio is 2:1:2. Others are the same as in the second embodiment.

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Abstract

The invention discloses a multifunctional polyurethane derivative, a preparation method and an application thereof. The invention aims to solve the problem that the existing multifunctional materialshave few functional types. Triphenylamine and tert-butyl-substituted triphenylamine monomers and 1,2-bis (4-hydroxyphenyl)-1,2-diphenylethylene containing a hydroxyl structure are firstly synthesized,and 4,4'-diphenylmethane diisocyanate is simultaneously introduced to prepare the multifunctional polyurethane derivative through a co-polymerization method. The material has electrochromic and fluorescence sensing hole transport functions, can be used as a rearview mirror material and a display material for automobiles, and can be used for preparing explosive detection and memory performance devices. The derivative belongs to the field of multifunctional materials.

Description

technical field [0001] The invention relates to a multifunctional polyurethane derivative and its preparation method and application. Background technique [0002] Polyurethane (PU) has many desirable properties, such as better flexibility, greater tensile strength, higher hardness, more resistance to chemical solvents and temperature conditions, higher abrasion resistance, higher oil resistance and Longer fatigue life. Polyurethanes are also potential candidates for membrane preparation due to their good mechanical and chemical properties. Although polyurethane has excellent comprehensive properties, traditional PU has some disadvantages, such as high processing difficulty and poor solubility, which greatly limit the industrial application of polyurethane materials. Therefore, in recent years, more and more researchers have begun to pay attention to the research on the preparation and modification of polyurethane and the application of related materials. [0003] Multifu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/32C09K11/06G01N21/64
CPCC08G18/3215C08G18/3243C08G18/7671C09K11/06C09K2211/1416C09K2211/1433G01N21/6428G01N2021/6432
Inventor 牛海军张旭路庆义杨彩誉范景贺
Owner HEILONGJIANG UNIV
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