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A method for preparing a polymer porous material with a through-pore structure by using snowman-shaped janus composite particles

A technology of composite particles and porous materials, which is applied in the field of polymer porous materials, can solve the problems of limiting the application of porous polymers, and achieve the effects of simple preparation methods, easy-to-obtain raw materials, and good permeability

Active Publication Date: 2018-11-30
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when solid particles are used as stabilizers, only polymer macroporous materials with closed-cell structure can be obtained, which greatly limits the application of porous polymers in many fields.
Therefore, it is a great challenge to prepare poly-Pickering high internal phase emulsion with through-pore structure

Method used

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  • A method for preparing a polymer porous material with a through-pore structure by using snowman-shaped janus composite particles
  • A method for preparing a polymer porous material with a through-pore structure by using snowman-shaped janus composite particles
  • A method for preparing a polymer porous material with a through-pore structure by using snowman-shaped janus composite particles

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Embodiment 1

[0033] Example 1 A polymer porous material with a through-hole structure prepared by using snowman-shaped Janus composite particles

[0034] The preparation method is as follows:

[0035] 1) Preparation of Janus snowman-shaped composite particles

[0036] 1.1) Take 1g of polystyrene hollow spheres and disperse them in 20g of water, then add a certain amount of NH 3 ·H 2 O (28wt%), adjust the pH of the solution to 8, stir at 70°C to form a seed emulsion.

[0037] 1.2) Then 2g 3-(methacryloxy)propyltrimethoxysilane (MPS), 2g 1.0wt% potassium persulfate aqueous solution (KPS), 0.02g sodium dodecylbenzenesulfonate (SDS) Ultrasonic dispersion in 10g of water to form a monomer emulsion.

[0038] 1.3) Then slowly drop the monomer solution into the seed emulsion within 30 minutes, and the reaction is carried out at 70°C. After the reaction, the precipitate obtained by centrifugation was washed with water and ethanol three times, centrifuged and vacuum-dried for 12 hours to obtain...

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Abstract

The invention discloses a method for preparing a through-hole-structure polymer porous material from snowman-shaped Janus composite particles. The method comprises the following steps: 1) preparing Janus snowman-shaped composite particles; 2) preparing n-octyl-modified Janus snowman-shaped composite particles; 3) preparing a high inner phase emulsion; and 4) preparing a poly high inner phase emulsion, removing the water phase in the high inner phase emulsion by using ethanol, and carrying out vacuum drying at 60-70 DEG C for 12-14 hours, thereby obtaining the through-hole-structure polymer porous material prepared from snowman-shaped Janus composite particles. The preparation method is simple, has the advantage of accessible raw materials, and can implement mass preparation. The prepared through-hole-structure snowman-shaped Janus composite particles have favorable permeability, and can be used in the aspects of separation, adsorption and the like.

Description

technical field [0001] The invention relates to a method for preparing a polymer porous material with a through-hole structure by using snowman-shaped Janus composite particles. Background technique [0002] Due to their unique physical properties such as low density, large specific surface area, and high porosity, porous materials have a wide range of applications in liquid chromatography, material transport, adsorption and separation, surface catalysis, and biomedical engineering. application value. Among these porous materials, polymer porous materials have attracted great interest of researchers due to their advantages of low cost, easy processing, and corrosion resistance. [0003] The high internal phase emulsion template method has been widely used because of the controllable pore size and simple operation of the prepared porous materials. Since the volume fraction of the internal phase of the high internal phase emulsion is higher than 75%, in order to obtain a sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F212/36C08F2/24C08F257/02C08F230/08C08F8/02C08J9/28
CPCC08F2/24C08F8/02C08F212/08C08F212/36C08F257/02C08J9/28C08J2201/0504C08J2325/02C08J2325/08C08F230/08
Inventor 王真真孟庆博梁福鑫杨振忠宋溪明
Owner LIAONING UNIVERSITY