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Guanidine salt polymer as well as preparation method and application thereof

A guanidine salt polymer and a guanidine salt technology are applied in the field of guanidine salt polymer and its preparation, which can solve the problems of adverse effects on the use performance of anti-harmful microbial materials, low bonding and end-capping efficiency, low reactivity, etc., and achieve improved application The effect of value, good product safety, flexible overall performance

Inactive Publication Date: 2021-03-19
上海明涌新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the relatively low reactivity of long-chain aliphatic amines and guanidinium salt oligomers, and the poor compatibility between aliphatic chains and guanidinium salt polymers, the efficiency of bonding end-capping is relatively low, and a large amount of aliphatic amines that do not participate in the reaction It will remain in the system and be difficult to separate, which will adversely affect the preparation and later use performance of the anti-harmful microbial material prepared by this; moreover, the fatty amine itself has the disadvantages of high corrosion, high irritation, high toxicity, etc., during processing and There will be a greater safety hazard during use

Method used

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  • Guanidine salt polymer as well as preparation method and application thereof
  • Guanidine salt polymer as well as preparation method and application thereof
  • Guanidine salt polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Get 38.2g guanidine hydrochloride (0.4mol) and 62.8g guanidine phosphate (0.4mol), join respectively In two three-necked flasks. Then add 54.5g m-xylylenediamine (0.4mol) in the flask containing guanidine hydrochloride, add 46.5g 1,6-hexamethylenediamine (0.4mol) in the flask containing guanidine phosphate, under nitrogen protection, stir and The temperature was raised to 90°C, and the reaction was carried out for 2.5 hours. Then the materials in the two flasks were combined in one flask, and the temperature was gradually raised to 170°C to continue the reaction for 2 hours. Finally, the temperature was lowered to 158°C, and 38.8 g of dodecyl glycidyl ether (0.16 mol) was added dropwise within 1.5 hours, then reacted for another 0.5 hour, and poured out while hot to obtain guanidinium salt polymer-1.

Embodiment 2

[0071] Get 62.8g guanidine phosphate (0.4mol) and 68.7g guanidine stearate (0.2mol), join respectively in two three-necked flasks. Then add 54.5g m-xylylenediamine (0.4 mol) in the flask containing guanidine phosphate, add 23.2g 1,6-hexamethylenediamine (0.2mol) in the flask containing guanidine stearate, under nitrogen protection, Stir and heat up to 105°C, and react for 2 hours. Then the materials in the two flasks were combined in one flask, and the temperature was gradually raised to 175° C. to continue the reaction for 3 hours. Finally, the temperature was lowered to 155°C, and a total of 14.8 g of phthalic anhydride (0.1 mol) was added in 4 times within 1 hour, then reacted for another 0.5 hour, and poured out while hot to obtain guanidinium salt polymer-2.

Embodiment 3

[0073] Get 48.4g guanidine carbonate (0.4mol) and 137.4g guanidine stearate (0.4mol), join in two three-necked flasks respectively. Then add 40.8g pentamethylenediamine (0.4mol) in the flask containing guanidine carbonate, also add 40.8g pentamethylenediamine (0.4mol) in the flask containing guanidine stearate, under nitrogen protection, stir and be warming up to 95 °C, react for 1.5 hours. Then the materials in the two flasks were combined in one flask, and the temperature was gradually raised to 170° C. to continue the reaction for 3 hours. Finally, the temperature was lowered to 150°C, and 26 g of butyl glycidyl ether (0.2 mol) was added dropwise within 1.5 hours, then reacted for another 0.5 hour, and poured out while hot to obtain guanidine salt polymer-3.

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Abstract

The invention discloses a guanidine salt polymer as well as a preparation method and application thereof. The guanidine salt polymer has a characteristic structure as shown in formula 1. The method comprises the following steps: during preparation, adding guanidine salt defining Y1 and Y2 structures respectively into a reaction kettle, then selecting double-end amino diamine with structures of NH2-R1-NH2 and NH2-R2-NH2, respectively subjecting the double-end amino diamine and the guanidinium containing the Y1 and Y2 structures to condensation polymerization, merging the materials, continuing to carry out condensation reaction, cooling to 160 DEG C or below, adding an end-capping reagent of which one end can react with an amino group and the other end is relatively inert, and continuing toreact for 0.2-3 hours to obtain the guanidine salt polymer shown in the formula 1. The guanidine salt polymer can be subjected to grafting reaction with other polymers to obtain a grafted polymer withno cross-linked structure and good processability.

Description

technical field [0001] The invention relates to the technical field of polymer compounds, in particular to a guanidinium salt polymer and its preparation method and application, belonging to C08G 73 / 00 in the International Patent Classification. Background technique [0002] Microorganisms are closely related to human life. Although most bacteria are beneficial to humans, a small number of germs and viruses have a significant negative impact on human daily life and even life. Therefore, vigorously developing antibacterial and antiviral anti-harmful microbial materials is of great significance for human public health and health. [0003] It is known in the industry that guanidinium salt polymers have excellent anti-harmful microbial functions, and have been widely used in the fields of medical and sanitary materials, biological materials and daily necessities materials. Peng Kaimei et al. (Acta Chem. Sinica, 2016, 74, 713-725) reviewed the research, application and developm...

Claims

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Application Information

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IPC IPC(8): C08G73/00C08G81/02
CPCC08G73/00C08G81/024
Inventor 陈风雨许西洋张素琴刘润田孟婕李冬阳
Owner 上海明涌新材料有限公司
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