Compound type macromolecular light stabilizer based on Diels-Alder click chemistry and preparation method thereof

A technology of light stabilizer and click chemistry, which is applied in the field of compound macromolecular light stabilizer and its preparation, can solve problems such as human health threats, achieve good compatibility, excellent broad-spectrum ultraviolet absorption function, and mild reaction conditions Effect
CN106589237AActive Publication Date: 2017-04-26江苏多淇医疗设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
江苏多淇医疗设备有限公司
Publication Date
2017-04-26

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Abstract

The invention discloses a preparation method of a compound type macromolecular light stabilizer based on Diels-Alder click chemistry. The preparation method comprises the following steps: performing a Diels-Alder reaction by using 3-(N,N-2-maleimido ethyl propionate-aminomethyl)-2,4-dihydroxy benzophenone and sebacic acid difurfuryl ester as raw material monomers; and then adding 2,2,6,6-tetramethyl-piperidine maleimide propionate as an end-capping reagent to prepare the compound type macromolecular light stabilizer, wherein the added amount of the end-capping reagent is 0.1-2% of the total weight of the raw material monomers. The invention discloses the compound type macromolecular light stabilizer based on the Diels-Alder click chemistry. The compound type macromolecular light stabilizer prepared by the preparation method disclosed by the invention has an excellent broad-spectrum ultraviolet absorption function, has a dual-light stabilizer effect of ultraviolet absorption and free radical capturing function, and has good compatibility with most high polymer materials.
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Description

technical field

[0001] The invention belongs to the field of polymer additives, and relates to a composite macromolecular light stabilizer based on Diels-Alder click chemistry and a preparation method thereof. Background technique

[0002] With the expansion of the ozone layer hole in the earth's atmosphere, the intensity of ultraviolet radiation on the ground is continuously increasing, which has extremely adverse effects on human beings and their living environment. Long-term exposure of polymer materials to ultraviolet radiation will accelerate aging and shorten the service life of materials. In order to reduce the aging phenomenon of polymer materials caused by this ultraviolet light, adding light stabilizers to polymer materials is an effective method.

[0003] Benzophenone UV absorbers are suitable for various light-colored products due to their good UV absorption performance in the range of 200-400nm, while hindered amine light stabilizers have different action modes...

Claims

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