High molecular weight guanidine salt and polyamine antimicrobial polymeric compounds, producing method and application of the same

A high molecular weight, polyamine technology, used in textiles and papermaking, fiber processing, paper and other directions, can solve the problem of polyamines and guanidine salts that are difficult to obtain higher molecular weight polymers, and achieve short reaction time, good antibacterial effect, and reaction low temperature effect

Inactive Publication Date: 2008-05-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem that it is difficult to obtain higher molecular weight polymers through bulk reaction of polyamines and guanidine salts in the prior art, and to provide a polybasic acid and polybasic anhydride with adjustable polymer molecular weight and antibacterial ability. Or high molecular weight guanidinium salt and polyamine antibacterial polymer obtained by chain extension of polyester

Method used

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  • High molecular weight guanidine salt and polyamine antimicrobial polymeric compounds, producing method and application of the same
  • High molecular weight guanidine salt and polyamine antimicrobial polymeric compounds, producing method and application of the same

Examples

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Effect test

Embodiment 1

[0028] Take guanidinium hydrochloride (CH 5 N 3 .HCl) 100 grams, propylenediamine 70 grams, join in the 500 milliliters of round bottom flasks, under the protection of nitrogen, the reaction temperature is raised to 120 ℃, after the reaction is carried out for 1 hour, add 50 grams of adipic acid, continue to heat up to React at 140°C for 6 hours. When the reaction reaches 4 hours, vacuumize the vacuum to 5kPa to speed up the reaction. Stop the reaction after 6 hours. The reaction product is an antibacterial guanidinium salt polymer with a molecular weight of about 1.5 ×10 4 , the minimum inhibitory concentration is 125ppm.

Embodiment 2

[0030] Take 150 grams of guanidinium hydrochloride and 23 grams of hexamethylenediamine, and add them to a 500-milliliter round-bottomed flask. Under the protection of nitrogen, the reaction temperature is raised to 80° C. After the reaction is carried out for 10 hours, add 40 grams of adipic acid, and continue to heat up After reaching 200°C, react for 3 hours. During the reaction, vacuumize to make the vacuum reach 8kPa to accelerate the reaction. The reaction product is an antibacterial guanidinium polymer with a molecular weight of about 2.3×10 4 , the minimum inhibitory concentration is 50ppm. During the reaction, a vacuum is drawn to accelerate the reaction, and the reaction product is an antibacterial guanidinium salt polymer.

Embodiment 3

[0032] Take 120 grams of guanidinium nitrate, 30 grams of propylenediamine, and 50 grams of hexamethylenediamine, and add them to a 500-milliliter round-bottomed flask. After passing through nitrogen for half an hour, the reaction temperature is raised to 100 ° C. After 6 hours of reaction, add butanediamine 12 grams of acid anhydride, continue to heat up to 160 ° C, react for 2 hours, when the reaction is carried out for 3 hours, vacuumize to make the vacuum degree reach 10kPa to accelerate the reaction, and stop the reaction after the reaction is carried out for 6 hours, the reaction product is antibacterial guanidine salt Polymer with a molecular weight of about 2.0×10 4 , the minimum inhibitory concentration is 62ppm.

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Abstract

The invention discloses a high molecular weight guanidine salt and polybasic amine antibiosis type polymer and a preparation method and the application thereof. The polymer comprises a repeated unit structure as right, wherein, X1 and X2 are the same or different polybasic amines; Y is Cl<->, NO3<->, HCO3<-> or H2PO4<->; Z is polyprotic acid, polyprotic acid anhydride or multielement ester. When in preparation, the mixture of polynary amine and guanidine salt is heated for reaction, and then polyprotic acid, polyprotic acid anhydride or multielement ester is added, and the temperature is continuously raised for reaction. The invention solves the problem that the polybasic amine and the guanidine salt react through a main body, thereby being difficulty to obtain a higher molecular weight polymer. In lower reaction temperature and shorter reaction time, by the chain expanding reaction to a polynary amine and guanidine salt prepolymer by the polyfunctionality substance, the high molecular weight guanidine salt and polybasic amine antibiosis polymer is formed. The polymer can be used as the anti fungus agent of the fiber product, the paper product, the non-weaving product and the tissue, etc.

Description

Technical field: [0001] The invention relates to a guanidine salt polymer, in particular to a high molecular weight guanidine salt and polyamine antibacterial polymer, a preparation method and application thereof. The polymer is prepared by chain extension of polyamine and guanidinium salt prepolymer with multifunctional organic matter. Background technique: [0002] With the improvement of people's living standards and the strengthening of hygiene awareness, as well as the continuous outbreak and prevalence of various infectious diseases in recent years, people's demand for various antibacterial materials and products has continued to increase, and higher requirements have been put forward for their antibacterial properties. Commonly used antibacterial agents can be divided into small molecule antibacterial agents and polymer antibacterial agents, and small molecule antibacterial agents can be further divided into inorganic antibacterial agents and organic antibacterial age...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/00D06M15/00D21H21/36
Inventor 钱丽颖肖惠宁何北海
Owner SOUTH CHINA UNIV OF TECH
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