Quaternary ammonium salt type dendritic polythioether modified polymer microsphere

A dendritic, polysulfide technology, used in biocides, animal repellents, plant growth regulators, etc., can solve problems such as affecting the bactericidal effect, and achieve high bactericidal performance, controllable graft structure, and good stability. sexual effect

Active Publication Date: 2020-08-18
YANTAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the porous polymer microspheres modified by the quaternary ammonium dendritic polysulfide prepared by the present invention have bactericidal properties, and meanwhile, the porous polymer microspheres modified by the quaternary ammonium dendritic polysulfide of the present invention serve as The fungicide does not have air bubbles when used, which solves the technical problem that the amphiphilic cationic antibacterial agent will self-assemble in water and produce a large number of air bubbles to affect the bactericidal effect

Method used

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  • Quaternary ammonium salt type dendritic polythioether modified polymer microsphere
  • Quaternary ammonium salt type dendritic polythioether modified polymer microsphere
  • Quaternary ammonium salt type dendritic polythioether modified polymer microsphere

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Experimental program
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Embodiment 1

[0051] The preparation method of quaternary ammonium salt type dendritic polysulfide modified polymer microsphere comprises the following steps:

[0052] S1: The mixture of 1,5-pentanedithiol (0.477 g, 3.50 mmol), propargyl glycidyl ether (0.196 g, 1.75 mmol) and 1,7-octadiyne (0.0934 g, 0.875 mmol) was Base material, then add the chloroform of described base material mass 80% (0.613 g), the polyethylene glycol (molecular weight is 5000 g / mol) of described base material mass 25% (0.192 g) and the described base material mass 3% (23 mg) of 2-hydroxy-2-methyl-1-phenyl-1-propanone was stirred into a homogeneous mixture, and the above mixture was slowly added dropwise to a solution with a concentration of 5% sodium dodecylbenzenesulfonate. ionic aqueous solution, then sealed and passed through high-purity nitrogen for 20 minutes, placed in an ice-water mixed bath and irradiated with an ultraviolet lamp for 1 hour until the reaction was completed, then washed and dried to obtain ep...

Embodiment 2

[0062] S1: The mixture of 1,8-octanedithiol (0.571 g, 3.20 mmol), propargyl glycidyl ether (0.269 g, 2.40 mmol) and 1,7-octanediyne (0.043 g, 0.401 mmol) was base material, and then add chloroform of 120% (1.061 g) of the base material mass, polyethylene glycol (molecular weight: 100000 g / mol) of the base material mass 25% (0.221 g) and the base material mass 3% (27 mg) of 1-hydroxycyclohexyl phenyl ketone was stirred into a homogeneous mixture, and the above mixture was slowly added dropwise to a deionized aqueous solution with a concentration of 5% sodium dodecylbenzenesulfonate, and then sealed and ventilated. After entering high-purity nitrogen for 60 minutes, put it in an ice-water mixed bath and irradiate it with an ultraviolet lamp for 3 hours until the reaction is completed, then wash and dry to obtain epoxy-based porous polymer microspheres.

[0063] S2: At room temperature, mix the epoxy-based porous polymer microspheres with propargyl amine according to a mass ratio...

Embodiment 3

[0072] S1: The mixture of 1,3-propanedithiol (0.4534 g, 4.19 mmol), propargyl glycidyl ether (0.283 g, 2.52 mmol) and 1,7-octadiyne (0.052 g, 0.48 mmol) was base material, and then add chloroform of 100% (0.789 g) of the base material mass, polyethylene glycol (molecular weight: 20000 g / mol) of the base material mass 35% (0.276 g) and the base material mass 3% (24 mg) of benzoin dimethyl ether was stirred to form a homogeneous mixture, and the above mixture was slowly added dropwise to a deionized aqueous solution with a concentration of 5% sodium dodecylbenzenesulfonate, then sealed and passed through high-purity nitrogen 40 Minutes later, place in an ice-water mixed bath and irradiate with an ultraviolet lamp for 2.5 hours until the reaction is complete, then wash and dry to obtain epoxy-based porous polymer microspheres.

[0073] S2: At room temperature, mix the epoxy-based porous polymer microspheres with 3-butenyl-1-amine according to a mass ratio of 1:0.5, and react for ...

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Abstract

The invention discloses a quaternary ammonium salt type dendritic polythioether modified polymer microsphere. The preparation method comprises the following steps: under an ultraviolet light condition, with methoxy polyoxyethylene as a pore-foaming agent and alkyl dithiol, propargyl glycidyl ether and 1,7-octylene as raw materials, synthesizing epoxy microporous polymer spheres by using a sulfydryl-alkyne addition suspension polymerization method; and performing a reaction on the epoxy microporous polymer spheres with excessive organic amine containing unsaturated substituent groups to obtainunsaturated substituent group functionalized porous polymer spheres; then with cysteamine hydrochloride and glycidyl ether containing unsaturated groups as raw materials and methanol as a solvent modifying the surfaces of the epoxy polymer microspheres with dendritic polythioether by adopting multiple iterative reactions alternately performed by a sulfydryl-epoxy addition reaction catalyzed by analkaline compound and a sulfydryl-ene/alkyne addition reaction initiated by free radicals. The quaternary ammonium salt type dendritic polythioether modified porous polymer microsphere prepared by theinvention has bactericidal activity, and does not generate bubbles when being used as a bactericide.

Description

technical field [0001] The invention relates to a reusable multifunctional polymer bactericide, which belongs to the field of functional polymer materials, and in particular to a porous polymer ball with a dendritic polysulfide structure grafted on the surface, a synthesis method thereof and a bactericide application. Background technique [0002] In 2016, the research group of Professor Gao Chao from Zhejiang University reported in Polym. The average diameter of the polymer spheres is about 70 microns, and the porosity is 62.45%. Moreover, the epoxy groups of the polymer beads described in the above documents are modified by mercapto-epoxy addition reaction with methyl thioacetate, mercaptopropionic acid and 3,3-dimethyl-1-mercaptopropylamine, and the improved The permanent epoxy-based polymer beads are used in the field of adsorption, and the maximum adsorption capacity for divalent copper ions is 158 mg / g. [0003] Dendrimers are a class of organic macromolecules with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36C08J9/40C08G75/045A01N33/12A01P3/00A01P1/00C08L81/02
CPCC08J9/36C08J9/405C08G75/045A01N33/12C08J2381/02
Inventor 郑耀臣刘健徐汇周玉赛高正国张新涛高璇
Owner YANTAI UNIV
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