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Fluorine-containing polystyrene-acrylonitrile hybrid material and preparation method thereof

A technology of polystyrene and hybrid materials, which is applied in the field of functional hybrid materials and their preparation, can solve the problems that are difficult to be widely used, and achieve the effects of large surface area, mild synthesis conditions and low price

Inactive Publication Date: 2012-12-19
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sol-gel process of the material can be traced back to the discovery of the French chemist J.Ebelman in 1864, but in order to avoid dry cracking, it takes a year-long aging and drying process, which makes this method difficult to be widely used.

Method used

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  • Fluorine-containing polystyrene-acrylonitrile hybrid material and preparation method thereof
  • Fluorine-containing polystyrene-acrylonitrile hybrid material and preparation method thereof
  • Fluorine-containing polystyrene-acrylonitrile hybrid material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1) p -Perfluoro-[1-(2-fluorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile Preparation: Add 15 mmol polystyrene-acrylonitrile 3g and 17g dichloro Methane, dissolve and blow nitrogen for 30 minutes, add 1.5 mmol perfluoro-2-(2-fluorosulfonyl-ethoxy)propionyl peroxide in CClF at 0°C 2 CCl 2 F solution, keep the temperature at 0°C and continue to stir for 48 hours, wash with water until neutral, and remove the solvent under reduced pressure to obtain p - Perfluoro-[1-(2-fluorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile;

[0034] 2) p - Amination of perfluoro-[1-(2-fluorosulfonyl)ethoxy]ethyl-substituted polystyrene-acrylonitrile: 3g p - Perfluoro-[1-(2-fluorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile was dissolved in 17g of tetrahydrofuran, then 0.3g of 3-aminopropyltriethoxysilane was added and reacted at room temperature After 30 minutes, the organic solvent was removed under reduced pressure to obtain the siloxane-cont...

Embodiment 2

[0040] 1) p - Preparation of perfluoro-[1-(2-fluorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile: add 3g (15 mmol) polystyrene-acrylonitrile and 17g Dichloromethane, dissolve and blow nitrogen for 30 minutes, add 1.5 mmol perfluoro-2-(2-fluorosulfonyl-ethoxy)propionyl peroxide in CClF at -10°C 2 CCl 2 Solution F, after continuing to stir at -10°C for 45 hours, was washed with water until neutral, and the solvent was removed under reduced pressure to obtain p - Perfluoro-[1-(2-fluorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile;

[0041] 2) p - Amination of perfluoro-[1-(2-fluorosulfonyl)ethoxy]ethyl-substituted polystyrene-acrylonitrile: 3g p - Perfluoro-[1-(2-fluorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile was dissolved in 17g of tetrahydrofuran, then 0.3g of 3-aminopropyltriethoxysilane was added and reacted at room temperature After 20 minutes, the organic solvent was removed under reduced pressure to obtain siloxane-conta...

Embodiment 3

[0046] 1) p - Preparation of perfluoro-[1-(2-chlorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile: add 3g (15 mmol) polystyrene-acrylonitrile and 17g Dichloromethane, dissolve and blow nitrogen for 30 minutes, add 1.5 mmol perfluoro-2-(2-chlorosulfonyl-ethoxy)propionyl peroxide in CClF at 0°C 2 CCl 2 Solution F, after continuing to stir at 0°C for 38 hours, was washed with water until neutral, and the solvent was removed under reduced pressure to obtain p - Perfluoro-[1-(2-chlorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile;

[0047] 2) p -Amination of perfluoro-[1-(2-chlorosulfonyl)ethoxy]ethyl-substituted polystyrene-acrylonitrile: 3g p-Perfluoro-[1-(2-chlorosulfonyl)ethoxy]ethyl substituted polystyrene-acrylonitrile was dissolved in 17g of tetrahydrofuran, then 0.3g of 3-aminopropyltriethoxysilane was added and reacted at room temperature After 25 minutes, the organic solvent was removed under reduced pressure to obtain the siloxane-containi...

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Abstract

The invention relates to a fluorine-containing polystyrene-acrylonitrile hybrid material and a preparation method thereof; omega-sulfonyl halide perfluoroalkylated polystyrene-acrylonitrile is prepared by reaction of polystyrene-acrylonitrile, dichloromethane, and an organic solution of omega-sulfonyl halide perfluorodiacyl peroxide; and then the product is obtained by aminolysis with 3-aminopropyl triethoxysilane, basic hydrolysis, sol-gelation, and acidification. The hybrid material has the advantages of strong acidity, large surface area, adjustable acid amount and pore structure, accessible active centers, high thermal stability, and easy synthesis, has an ion exchange equivalent of 0.1-2.5 mmol / g, and is applicable to the fields of organic catalysis, environment protection, and the like.

Description

[0001] technical field [0002] The invention relates to a functional hybrid material and a preparation method thereof, in particular to a fluorine-containing polystyrene-acrylonitrile hybrid material and a preparation method thereof. Background technique [0003] Inorganic-organic hybrid materials can realize the bonding between organic components and inorganic components at the molecular level, and have been widely used in the fields of coatings, thin films, nanocomposites, glass and organic ceramics. Organic components and inorganic components are bonded by chemical bonds, which have many excellent properties such as low density, high toughness, plasticity of polymers, transparency, high surface area, and surface hardness of inorganic materials, and are easy to cut into special structures. Materials such as microcapsules, core-shell particles, capillaries, etc., have high stability. Compared with traditional composite materials, hybrid materials have many applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/442C08F212/10C08F220/44C08F8/42C08F8/38C08F8/12
Inventor 林正欢凌启淡黄丽梅
Owner FUJIAN NORMAL UNIV