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Amphoteric-polymer-based marine antifouling surface and preparation method thereof

An amphoteric polymer, marine antifouling technology, used in antifouling/underwater coatings, coatings, biocide-containing paints, etc., to achieve the effect of easy operation, prevention of marine biofouling, and good marine antifouling

Inactive Publication Date: 2019-05-10
RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, polymers containing zwitterions have attracted extensive attention from researchers due to their excellent anti-protein adsorption effect, and the application of zwitterionic polymers to marine antifouling surfaces has not been reported yet.

Method used

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  • Amphoteric-polymer-based marine antifouling surface and preparation method thereof
  • Amphoteric-polymer-based marine antifouling surface and preparation method thereof
  • Amphoteric-polymer-based marine antifouling surface and preparation method thereof

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Embodiment 1

[0032] This embodiment provides a method for preparing an amphoteric polymer-based marine antifouling surface, comprising the following steps:

[0033] S1. Preparation of zwitterionic monomers:

[0034] Take 1.38g of norbornene acid and 1.34g of hydroxyethylimidazole into a 100ml round bottom flask, add 50ml of dichloromethane and stir to dissolve, then add 1.86g of N,N-dicyclohexylcarbodiimide and 0.06g of 4 - Dimethylaminopyridine. The temperature of the reaction was controlled at 0° C., and the reaction was completed after 24 hours. The precipitate was removed by filtration, and the obtained solution was washed with water, sodium bicarbonate and a saturated solution of sodium chloride in sequence, and after drying, the solvent was distilled off under reduced pressure. Then, 1.46 g of 1,3-propane sultone and 4 ml of acetonitrile were added to the product of the first step. After 48 hours of reaction at room temperature, ether was added to precipitate a white solid, which wa...

Embodiment 2

[0040] S1. Preparation of zwitterionic monomers:

[0041] Take 1.38g of norbornene acid and 1.23g of hydroxyethylimidazole into a 100ml round bottom flask, add 50ml of dichloromethane and stir to dissolve, then add 1.86g of N,N-dicyclohexylcarbodiimide and 0.06g of 4 - Dimethylaminopyridine. The temperature of the reaction was controlled at 20°C. After 18 hours, the reaction was completed, and the precipitate was removed by filtration. The resulting solution was washed with water, sodium bicarbonate and a saturated solution of sodium chloride in sequence, and after drying, the solvent was distilled off under reduced pressure. Then, 1.22 g of 1,3-propane sultone and 3 ml of acetonitrile were added to the product of the first step. After reacting at room temperature for 24 hours, ether was added to precipitate a white solid, which was dried at room temperature to obtain a zwitterionic monomer.

[0042] S2, preparation of modified polydimethylsiloxane (PDMS):

[0043] Take 10g ...

Embodiment 3

[0047] S1. Preparation of zwitterionic monomers:

[0048] Take 1.38g of norbornene acid and 1.34g of hydroxyethylimidazole into a 100ml round bottom flask, add 50ml of dichloromethane and stir to dissolve, then add 1.86g of N,N-dicyclohexylcarbodiimide and 0.06g of 4 - Dimethylaminopyridine. The temperature of the reaction was controlled at 10°C. After 36 hours, the reaction was completed, and the precipitate was removed by filtration. The resulting solution was washed with water, sodium bicarbonate and a saturated solution of sodium chloride in sequence, and after drying, the solvent was distilled off under reduced pressure. Then, 1.34 g of 1,3-propane sultone and 6 ml of acetonitrile were added to the product of the first step. After reacting at room temperature for 48 hours, diethyl ether was added to precipitate a white solid, which was dried at room temperature to obtain a zwitterionic monomer.

[0049] S2, preparation of modified polydimethylsiloxane (PDMS):

[0050] T...

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Abstract

The invention belongs to the technical field of marine organism lossless protection, and particularly relates to an amphoteric-polymer-based marine antifouling surface and a preparation method thereof. The method includes the steps: designing and preparing a monomer of an amphoteric ion with a norbornene structure; initiating and grafting an amphoteric-polymer on the surface of modified polydimethylsiloxane by a surface initiation ring-opening metathesis polymerization method under catalyzing of a Grubbs catalyst to obtain the antifouling surface. The antifouling surface is simple and convenient to operate, the grafting density of an acquired polymer is high, and the antifouling surface has good marine antifouling effects.

Description

technical field [0001] The invention belongs to the technical field of non-destructive protection of marine organisms, and in particular relates to an amphoteric polymer-based marine antifouling surface and a preparation method thereof. Background technique [0002] Marine fouling organisms refer to the general term of animals, plants and microorganisms attached to the bottom of ships and the surface of marine equipment. With the continuous utilization of marine resources, the economic and social problems caused by marine biofouling are becoming more and more serious. There are many equipment polluted by marine organisms, including ship bottoms, pipelines, dams, submarine cables, submarine tunnels, pontoons, and nets. The scope of influence caused by the pollution is also very wide, such as increasing the navigation resistance of ships and fuel consumption; increasing the number of cleaning and maintenance of ships; causing signal distortion of offshore platform facilities;...

Claims

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Application Information

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IPC IPC(8): C09D183/10C09D5/16C08G77/42
Inventor 叶谦何宝罗刘淑娟周峰
Owner RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN
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