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Elastic hydrophobic material and synthetic method as well as application thereof

An elastic and hydrophobic adsorption technology, used in chemical instruments and methods, water pollutants, other chemical processes, etc., can solve the problems of insufficient bonding between polymers and sponges, insoluble and insoluble, and difficult industrial applications, and achieve excellent separation. performance, large adsorption capacity, convenient regeneration effect

Inactive Publication Date: 2013-08-14
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently reported organic conjugated polymers are amorphous, exist in the form of powder, and have the characteristics of insolubility and non-melting, so it is difficult for industrial application
Although it has been reported in the literature that superhydrophobic conjugated polymers can be doped on ordinary sponges to prepare strong hydrophobic sponge adsorption materials, the combination of polymers and sponges is not tight enough and it is easy to fall off.

Method used

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  • Elastic hydrophobic material and synthetic method as well as application thereof
  • Elastic hydrophobic material and synthetic method as well as application thereof
  • Elastic hydrophobic material and synthetic method as well as application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1. Synthesis: 2 mmol of 1,4-diethynylbenzene, 2 mmol of 1,3,5-tribromobenzene, 100 mg of tetrakis(triphenylphosphine) palladium, 30 mg of cuprous iodide, commercially available sponge Cut into 10mm pieces (80mg), placed in a 100ml dry round bottom flask. Pass argon gas into the round bottom flask and exhaust the air for 20 minutes to form an anhydrous and oxygen-free environment. Then add 15ml of toluene and 15ml of triethylamine into the device with a syringe, stir vigorously under argon atmosphere, then raise the temperature to 80°C, and react for 6h.

[0044] 2. Filtration: wash the product with dichloromethane, acetone, deionized water, and methanol respectively, and vacuum-dry at 70°C for 3 hours to obtain an elastic hydrophobic material with a mass of 230mg. That is to say, 150 mg of polymers grew closely inside the 80 mg of sponge, which was difficult to remove.

Embodiment 2

[0046] 1. Synthesis: 3 mmol of 1,4-diethynylbenzene, 2 mmol of 2,4,6-tribromotoluene, 100 mg of tetrakis(triphenylphosphine) palladium, 30 mg of cuprous iodide, commercially available poly The ammonia fat sponge was cut into 5mm pieces (100mg), and placed in a 100ml dry round bottom flask. Pass argon gas into the round bottom flask and exhaust the air for 20 minutes to form an anhydrous and oxygen-free environment. Then add 30ml of toluene and 15ml of triethylamine into the device with a syringe, stir vigorously under argon atmosphere, then raise the temperature to 90°C, and react for 8h.

[0047] 2. Filtration: Wash the product with chloroform, acetone, deionized water, and ethanol respectively, and vacuum-dry it at 70°C for 3 hours to obtain an elastic hydrophobic material with a mass of 210mg. That is to say, 110 mg of the polymer is densely grown inside the 100 mg of sponge, which is difficult to remove.

Embodiment 3

[0049] 1. Synthesis: 2mmol of 1,3,5-triethynylbenzene, 2mmol of 2,4,6-tribromophenol, 30mg of tetrakis(triphenylphosphine)palladium, 10mg of cuprous iodide, melamine sponge Cut into 20mm pieces (100mg), placed in a 100ml dry round bottom flask. Nitrogen was passed into the round bottom flask to exhaust the air for 20 minutes to form an anhydrous and oxygen-free environment. Then add 50ml of toluene and 15ml of triethylamine into the device with a syringe, stir vigorously under argon atmosphere, then raise the temperature to 60°C, and react for 5h.

[0050] 2. Filtration: Wash the product with dichloromethane, acetone, deionized water, and ethanol, and vacuum-dry it at 70°C for 3 hours to obtain an elastic hydrophobic material with a mass of 260 mg. That is to say, 150 mg of the polymer is densely grown inside the 100 mg of sponge, which is difficult to remove.

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Abstract

The invention discloses an elastic hydrophobic material, a preparation method thereof and application of the material to removal of organic compounds in water. In particular, acetylenyl benzene and benzene halide are polymerized in a sponge, a polymer forms a hydrophobic micro-nanostructure inside the sponge, and an elastic highly hydrophobic material is finally formed. The material can selectively adsorb / separate oil or non-polar organic solvents in a water body, simultaneously has better elasticity and can separate the organic compounds by way of extrusion after the adsorbed organic compounds are saturated. The synthetic process of the material is simple, has low requirements for equipment and can achieve industrial scale production. The material has high efficiency of removing organic matters in water, has a simple regeneration process, is low in cost and has extensive application prospects.

Description

technical field [0001] The invention belongs to the field of polymer material synthesis and application, and in particular relates to an elastic hydrophobic material, its preparation method, and the application of the material in removing organic compounds in water. Background technique [0002] Water resources are an important material basis for sustainable economic and social development. However, water pollution caused by industrial organic waste discharge and marine environment pollution caused by oil spills have caused serious ecological disasters to freshwater resources and the marine environment. For example, the petrochemical production process produces high-concentration organic wastewater. Due to the complex composition and high content of organic compounds, it is difficult to biochemically directly, resulting in eutrophication of the water body and the loss of animal and plant species. With the development of the global economy, the amount of crude oil extracted o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/42C08G61/02B01J20/26C02F1/28C02F101/30
Inventor 谭大志刘雪飞张真袁麟范文杰
Owner DALIAN UNIV OF TECH
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