Method for catalyzing primary amine-acrylate biaddition reaction and application thereof

A technology for acrylates and catalyzing primary amines, used in the preparation of cyanide reactions, chemical instruments and methods, and the preparation of organic compounds, etc. The effect of lithium ion transport

Active Publication Date: 2022-08-05
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a method for catalyzing the double addition reaction of primary amine-acrylic acid ester, aiming at solving the problem of slow reaction rate and constant reaction rate of Michael double addition reaction system of existing primary amine monomers. The problem of low conversion rate in time

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  • Method for catalyzing primary amine-acrylate biaddition reaction and application thereof
  • Method for catalyzing primary amine-acrylate biaddition reaction and application thereof
  • Method for catalyzing primary amine-acrylate biaddition reaction and application thereof

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[0032] On the other hand, the present invention also provides an in-situ preparation method of a gel polymer electrolyte, comprising the steps of: mixing a small-molecule organic plasticizer in which a lithium salt is dissolved with a primary amine monomer and an acrylate monomer After stirring and mixing, and standing for a period of time, the primary amine monomer and the acrylate monomer undergo a double addition reaction, and in-situ polymerization is performed to obtain a gel polymer electrolyte. Specifically, the lithium salt and the small molecular organic plasticizer are mixed in a certain proportion, and after stirring evenly, a catalytic solvent is formed; the primary amine monomer and the acrylate monomer are mixed in a certain proportion, and the catalytic solvent is added to form a The precursor liquid, the precursor liquid is allowed to stand for reaction, and the gel polymer electrolyte is obtained by in-situ polymerization.

[0033] In some embodiments, the lit...

Embodiment 1

[0041] A method for a lithium salt-catalyzed primary amine-acrylate double addition reaction, comprising the following steps:

[0042] Mix lithium bistrifluoromethanesulfonimide, mesitylene and methyl acrylate at 1:1:20, and after the lithium salt is completely dissolved, add n-propylamine with a molar ratio of 2:1 to methyl acrylate into the reaction flask , carry out primary amine-acrylate double addition reaction, carry out nuclear magnetic test every half an hour, use mesitylene as calibration, calculate the conversion rate of double bonds. The conversion was 51.43% after half an hour and 87.43% after 5 hours.

Embodiment 2

[0044] A method for a lithium salt-catalyzed primary amine-acrylate double addition reaction, comprising the following steps:

[0045] Mix lithium perchlorate, mesitylene and methyl acrylate at 1:1:15. After the lithium salt is completely dissolved, n-propylamine with a molar ratio of 2:1 to methyl acrylate is added to the reaction flask to carry out primary amine-acrylic acid. For ester double addition reaction, nuclear magnetic test was carried out every half an hour, and the conversion rate of double bond was calculated with mesitylene as the calibration. The conversion was 56.55% after half an hour and 95.24% after 5 hours.

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Abstract

The invention belongs to the technical field of polymer electrolyte, and particularly discloses a method for catalyzing primary amine-acrylate biaddition reaction and application of the method. According to the method, lithium salt is introduced into a reaction system of a primary amine monomer and an acrylate monomer to serve as a catalyst; lithium ions dissociated from the lithium salt are coordinated with carboxyl in the acrylate monomer to reduce the electron cloud density of double bonds, so that a secondary amine mono-addition intermediate product generated after the mono-addition reaction of the primary amine monomer and the acrylate monomer is catalyzed to perform a second-step addition reaction; the tertiary amine biaddition product is obtained. The lithium salt is utilized to catalyze the primary amine-acrylate biaddition reaction, the reaction efficiency is greatly improved, the conversion rate is high, the gel polymer electrolyte is prepared in situ by utilizing the reaction system, the method is simple and efficient, the reaction condition is mild, and the prepared gel polymer electrolyte material is stable in structure and has excellent electrochemical performance.

Description

technical field [0001] The invention belongs to the technical field of polymer electrolytes, and more particularly relates to a method for catalyzing primary amine-acrylate double addition reaction and its application. Background technique [0002] The energy crisis and environmental pollution problems brought about by the rapid consumption of traditional fossil energy restrict the further development of science and technology, and today's sustainable, pollution-free renewable energy still has certain limitations in its use. Therefore, as an emerging green energy storage device, lithium batteries lead the new energy technology revolution with the advantages of high energy density, long cycle life, and wide operating voltage range. At present, the liquid electrolytes used in commercial lithium batteries have potential safety hazards, and the electrochemical performance of high-safety solid electrolytes is not ideal. Gel polymer electrolytes combine the advantages of liquid e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C227/08C07C229/16C08G73/02H01M10/0565
CPCC07C227/08C08G73/028H01M10/0565C07C229/16Y02E60/10
Inventor 薛志刚张驰王计嵘周兴平解孝林
Owner HUAZHONG UNIV OF SCI & TECH
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