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A kind of multi-responsive dendritic polymer prepared by visible light-triggered thiol-ene click reaction and its method

A compound and responsive technology, applied in the field of multi-responsive dendritic polymers, can solve the problems of low safety, harsh reaction conditions, and high degree of human injury

Active Publication Date: 2021-12-24
GUIZHOU MINZU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In order to solve the technical problems of low safety and high degree of harm to human beings, the present invention provides a reaction condition simple , a multi-responsive dendritic polymer prepared by visible light-triggered thiol-ene click reaction with low safety and low degree of harm to humans and its method

Method used

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  • A kind of multi-responsive dendritic polymer prepared by visible light-triggered thiol-ene click reaction and its method
  • A kind of multi-responsive dendritic polymer prepared by visible light-triggered thiol-ene click reaction and its method
  • A kind of multi-responsive dendritic polymer prepared by visible light-triggered thiol-ene click reaction and its method

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Embodiment 1

[0055] A method for preparing multiple responsive dendritic polymers by visible light-triggered thiol-ene click reaction, comprising the following steps:

[0056] A. Take 10g of trimethylolpropane tris(3-mercaptopropionate) and add 0.04g of Fluorescent Brightener 28 in a light-proof environment, stir at 15°C for 2h to obtain a mixture of mercapto groups, and the stirring speed is 250 rpm ;

[0057] B. Take 10g of trimethylolpropane trimethacrylate, add 0.2g of diphenyliodonium hexafluorophosphate in a light-proof environment, and stir at 15°C for 2h to obtain acrylate compounds. 250 rpm;

[0058] C. At 15°C, under the irradiation of natural light, take 10 g of the mercapto compound obtained in step A and the acrylate compound obtained in the equal mass of step B, mix and stir for 10 minutes and let stand for 30 minutes at a stirring speed of 100 rpm to obtain multiple Responsive dendritic polythioether polymers. The molecular formula of the multi-responsive branched polysul...

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Abstract

The invention belongs to the technical field of intelligent materials and environmental materials, and in particular relates to a multi-responsive dendritic polymer prepared by thiol-ene click reaction triggered by visible light and a method thereof. The present invention uses mercapto compounds and acrylate compounds as monomers, adopts thiol-ene click chemical reaction and visible light-induced free radical polymerization method, and successfully synthesizes intelligent multi-responsive dendritic polymers. The main advantages of the preparation method of the present invention are environmental protection, simple operation, mild conditions and high reaction efficiency, no organic acid and alkali accelerators are used, catalyst cost is saved, and the problem of residual metal catalysts is avoided. The synthesized multi-responsive dendritic polymer not only exhibits excellent photosensitive behavior, but also has pH and redox-dependent photosensitive behavior. It is a promising new green preparation that can be widely used in the development of smart materials and environmental materials. technology.

Description

technical field [0001] The invention belongs to the technical field of intelligent materials and environmental materials, and in particular relates to a multi-responsive dendritic polymer prepared by a visible light-triggered thiol-ene click reaction and a method thereof. Background technique [0002] Dendritic polymers have one-dimensional conformation, nanometer size, abundant peripheral groups and various structural properties, which make them widely used in the fields of enzyme catalysis, macromolecular carriers and optoelectronic materials, and are widely used in national defense, industry, agriculture, medicine, life It has important application prospects in many national economic fields such as science and environmental protection. Since Professor Takagi Toshinori first proposed the concept of smart materials in 1989, how to endow dendritic polymers with intelligent properties, so that they can sense external stimuli and exchange and transform substances, energy, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G75/045C08G83/00
CPCC08G75/045C08G83/003
Inventor 左晓玲杨吟野罗胜耘
Owner GUIZHOU MINZU UNIV
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