Preparation method of polyamineacid-coenzyme-polyether copolymer

A technology of polyether copolymer and polyamino acid, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles. It can solve problems such as secondary pollution and unsatisfactory removal effects, and achieve strong absorption and protect the health of the body. Effect

Inactive Publication Date: 2018-01-30
广东绿净界新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned shortcoming of prior art, the purpose of this invention is to provide a kind of preparation method of new polyamino acid-coenzyme-polyether copolymer, to overcome existing in the prior art when removing harmful gas formaldehyde, the removal effect is not enough Ideal and prone to secondary pollution defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0024] (1) Take 50g of fully dried polyethylene glycol monomethyl ether 500 and 30g of NAD and mix them, place them in an autoclave, and add 5g of catalyst. The catalyst contains 65% by weight of cobalt, 32% by weight of aluminum and 0.5% by weight. % Copper, heated to 200°C, reacted for 15 hours at a pressure of 0.8 MPa to obtain a yellow liquid, centrifuged at a speed of 10,000 rpm for 15 minutes, and took the supernatant to proceed to the next step.

[0025] (2) In the supernatant, add 300ml of tetrahydrofuran, then add 18g of γ-benzyl-L-glutamate-N-lactam acid anhydride and 20g of catalyst, the catalyst contains 30wt% The hydrogen bromide was stirred at 25°C for 72 hours. After the reaction, the product was settled with ether, washed repeatedly, filtered, and dried in vacuum to obtain the amino acid-polyether-polyester copolymer.

Embodiment example 2

[0027] (1) Take 50g of fully dried polyethylene glycol monomethyl ether 500 and 35g of NADP and mix them, place them in an autoclave, and add 10g of catalyst, which contains 95wt% cobalt, 3wt% aluminum and 0.3wt% % Copper, heated to 200°C, reacted for 10 hours at a pressure of 1.2 MPa to obtain a yellow liquid, centrifuged at a speed of 10,000 rpm for 15 minutes, and took the supernatant to proceed to the next step.

[0028] (2) In the supernatant, add 500ml of tetrahydrofuran, then add 25g of γ-propynyl-L-glutamate-N-lactam acid anhydride and 35g of catalyst, the catalyst contains 20wt% The palladium on carbon was stirred at 30°C for 55 hours. After the reaction, the product was settled with ether, washed repeatedly, filtered, and dried in vacuum to obtain the amino acid-polyether-polyester copolymer.

[0029] In the structure of polyamino acid-coenzyme-polyether copolymer, it is a highly branched tree structure, and the side chain contains a large number of structures connected b...

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PUM

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Abstract

The invention discloses a preparation method of a polyamineacid-coenzyme-polyether copolymer. Amino acid-N-carboxylic acid anhydride, coenzyme and polyether form a polyamineacid-coenzyme-polyether copolymer under appropriate catalysts and conditions. Such copolymer has a highly branched tree structure, a side chain contains a large quantity of structures which are similar to hydrazine compounds and connected with primary amine and secondary amine, such structure can generate an irreversible reaction with formaldehyde, avoids common high toxicity and strong reducibility of hydrazide compounds,has stable properties, and is not decomposed when being heated to 100 degrees centigrade, and no toxic or hazardous gases are released. Thus such copolymer has strong absorptivity for harmful gas formaldehyde, avoids the generation of secondary pollution, and is significant for protecting the health of mankind.

Description

Technical field [0001] The invention relates to the field of biopolymer material synthesis, in particular to the preparation of a polyamino acid-coenzyme-polyether copolymer. Background technique [0002] Formaldehyde is a common volatile organic compound, which comes from synthetic fibers, resins, paints, microbial degradation, meat, fruits and vegetables, and various woods. The irritation of formaldehyde can cause headaches, nausea, asthma, and acute skin irritation. It is also the organic matter that is most likely to change protein, genetic material DNA and RNA, which can lead to tumors and cancers, which are extremely harmful to the human body. Eliminating indoor formaldehyde and reducing it to a safe concentration range is of great significance to human life and the protection of genetic material. [0003] At present, there are two main research directions in the elimination of formaldehyde: adsorption method and oxidation method. The adsorbent materials selected for the ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/42C08G65/335B01D53/72B01D53/81
Inventor 姚春华
Owner 广东绿净界新材料科技有限公司
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