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Smart responsive dendritic copolymer containing metastable photoacid and preparation method thereof

A branching and metastable technology, applied in dendritic copolymers and their preparation, regulation of metastable photoacid isomerization, intelligent responsive dendritic copolymers and their preparation, can solve the problem of low proton concentration , to achieve good stability, suitable for popularization and use, and the method is simple and easy to implement

Active Publication Date: 2022-01-07
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The excited state photoacid is highly acidic when it is in the excited state under light, and will recombine protons to form a low acidic ground state when it is dark. This excited state photoacid is reversible, but the concentration of released protons is low

Method used

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  • Smart responsive dendritic copolymer containing metastable photoacid and preparation method thereof
  • Smart responsive dendritic copolymer containing metastable photoacid and preparation method thereof
  • Smart responsive dendritic copolymer containing metastable photoacid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In this embodiment, an intelligent responsive dendritic copolymer containing metastable photoacids has a general formula of 3EtPG1 38 -co-PM.

[0054] In this example, the preparation method of the intelligent responsive dendritic copolymer containing metastable photoacid in this example, the steps are as follows:

[0055] a. Dissolve the MEH-NH monomer in DMSO, add triethylamine whose molar weight is 1.5 times that of the MEH-NH monomer, and then add the three-arm alkoxyether dendron monomer in a nitrogen atmosphere, and then Add the initiator AIBN, and carry out the polymerization reaction at 70° C. for 4 hours; the structural formula of the three-arm alkoxy ether dendron monomer 3-EtG1 is as follows:

[0056] The amount of the initiator AIBN used for the polymerization reaction is 2wt.% of the total mass of the monomer; the molar ratio of the alkoxy ether dendron monomer and the MEH-NH monomer is 9:1;

[0057] b. After the reaction in step a is completed, add ace...

Embodiment 2

[0063] This embodiment is basically the same as Embodiment 1, especially in that:

[0064] In this embodiment, a smart responsive dendritic copolymer containing metastable photoacids has a general formula of 6EtPG1 20 -co-PM.

[0065] In this example, the preparation method of the intelligent responsive dendritic copolymer containing metastable photoacid in this example, the steps are as follows:

[0066] a. Dissolve the MEH-NH monomer in DMSO, add triethylamine whose molar weight is 1.5 times that of the MEH-NH monomer, and then add the six-arm alkoxyether dendron monomer in a nitrogen atmosphere, and then Add the initiator AIBN, and carry out the polymerization reaction at 70° C. for 4 hours; the structural formula of the six-arm alkoxy ether dendron monomer 6-EtG1 is as follows:

[0067] The amount of initiator AIBN used for the polymerization reaction is 2wt.% of the total mass of the monomer; the molar ratio of the alkoxy ether dendron monomer and the MEH-NH monomer i...

Embodiment 3

[0074] This embodiment is basically the same as the previous embodiment, and the special features are:

[0075] In this embodiment, a smart responsive dendritic copolymer containing metastable photoacids has a general formula of 6EtPG1 13 -co-PM.

[0076] In this example, the preparation method of the intelligent responsive dendritic copolymer containing metastable photoacid in this example, the steps are as follows:

[0077] a. Dissolve the MEH-NH monomer in DMSO, add triethylamine whose molar weight is 1.5 times that of the MEH-NH monomer, and then add the six-arm alkoxyether dendron monomer in a nitrogen atmosphere, and then Add the initiator AIBN, and carry out the polymerization reaction at 70° C. for 4 hours; the structural formula of the six-arm alkoxy ether dendron monomer 6-EtG1 is as follows:

[0078] The amount of the initiator AIBN used for the polymerization reaction is 2wt.% of the total mass of the monomer; the molar ratio of the alkoxy ether dendron monomer...

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Abstract

The invention discloses an intelligent responsive dendritic copolymer containing metastable photoacid and a preparation method thereof. The isomerization of metastable photoacid is regulated by the microenvironment of dendritic polymer, and the metastable photoacid is introduced into In the alkoxyether dendritic polymers with temperature-sensitive properties, a class of smart dendritic copolymers containing metastable photoacids were prepared, combining the excellent water solubility, temperature sensitivity and tree structure of alkoxyether dendrimers Features, using the change of the microenvironment provided by its special topological structure to realize the adjustment of the force between the components in the system, so as to realize the regulation of the metastable photoacid isomerization. The intelligent dendritic copolymer of the present invention has the characteristics of multiplicity, environmental friendliness, simplicity, flexibility, and the like in regulating the metastable photoacid. Therefore, it has guiding significance for applications in the fields of biomedicine, molecular probes, environmental monitoring, optical devices, information storage, and intelligent display.

Description

technical field [0001] The present invention relates to a dendritic copolymer and a preparation method thereof, in particular to an intelligent responsive dendritic copolymer and a preparation method thereof, and also to a method for regulating metastable photoacid isomerization, which is applied to intelligent Responsive functional polymer technical field. Background technique [0002] Photoacid acts as a bridge connecting light and protons, and the release of protons is stimulated by light. The photoacids reported earlier are not reversible, called photoacid generators (PAGs), that is, they cannot recombine protons after releasing protons under light. With the development of materials, it is more important to reversibly control the release and binding of protons by light, so excited state photoacids have been widely studied since the 1970s. The excited state photoacid has high acidity when it is in the excited state under light, and will recombine protons to form a low a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/30C08F220/60G03F7/004
CPCC08F220/306G03F7/004C08F220/606
Inventor 苏新艳陈会马琴琴吕敏鄂懿刘坤李文张阿方
Owner SHANGHAI UNIV