Method for preparing three-dimensional ordered macroporous material by using water-soluble colloidal crystal as template

A water-soluble colloid, three-dimensional ordered technology, applied in climate sustainability, sustainable manufacturing/processing, silica, etc., to achieve good gloss and chemical structure, size uniformity, maintain gloss and chemical structure effect

Active Publication Date: 2013-02-13
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method creatively proposes to prepare colloidal crystal templates by preparing water-soluble monodisperse polyacrylamide nano-microspheres. When preparing three-dimensional ordered macroporous materials, wa

Method used

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  • Method for preparing three-dimensional ordered macroporous material by using water-soluble colloidal crystal as template
  • Method for preparing three-dimensional ordered macroporous material by using water-soluble colloidal crystal as template
  • Method for preparing three-dimensional ordered macroporous material by using water-soluble colloidal crystal as template

Examples

Experimental program
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Example Embodiment

[0046] Example 1

[0047] Preparation of Three-dimensionally Ordered Macroporous Cross-linked Polyacrylonitrile with Pore Size About 300nm

[0048] (1) Preparation of 300nm water-soluble polyacrylamide colloidal crystal template

[0049] Add 2.6923g (accounting for 5.98% of the total mass of the material) AM and 2.6923g (accounting for 5.98% of the total mass of the material) PVP into the three-necked bottle, then add 20mL (20g accounts for 44.45% of the total mass of the material) distilled water and 25mL (19.5g accounted for 43.34% of the total mass of the material) tert-butanol, bubbled argon into the solution, heated to 75°C in a water bath or oil bath, reacted under argon protection, and stirred until the solution was heated to 75 ℃ and the system is stable, add the initiator 0.1122g (accounting for 0.25% of the total mass of the material) AIBN into the three-necked flask, the stirring speed is 80r / min, the temperature is controlled at about 75 ℃, the reaction is stopped...

Example Embodiment

[0053] Embodiment 2

[0054] Preparation of three-dimensionally ordered cross-linked polystyrene with a pore size of about 500 nm

[0055] (1) Preparation of 500nm water-soluble polyacrylamide colloidal crystal template

[0056] Add 5.0804g (10% of the total mass of the material) AM and 3.0482g (6% of the total mass of the material) PVP into the three-necked bottle, and then add 15mL (15g of the total mass of the material 29.53%) distilled water and 35mL (27.65g accounted for 54.42% of the total mass of the material) ethanol, bubbled argon into the solution, heated to 75°C in a water bath or oil bath, reacted under argon protection, and stirred until the solution was heated to 75°C and When the system is stable, add the initiator 0.0254g (accounting for 0.05% of the total mass of the material) AIBN into the three-necked bottle, the stirring speed is 70r / min, the temperature is controlled at about 75°C, the reaction is stopped after 7h, and the obtained emulsion is mixed. Rem...

Example Embodiment

[0060] Embodiment 3

[0061] Preparation of Three-dimensionally Ordered Macroporous Polymethyl Methacrylate with Pore Size About 200 nm

[0062] (1) Preparation of 200nm water-soluble polyacrylamide colloidal crystal template

[0063] Add 24g (20mL water, 4g AM accounts for 24.4892% of the total mass of the material) aqueous solution of acrylamide and 5.8g (5.9182% of the total mass of the material) Span80, 5.8g (5.9182% of the total mass of the material) Tween80, then add 80mL (62.4g accounts for 63.6718% of the total mass of the material) cyclohexane, bubbling argon into the solution, heating to 30°C, reacting under argon protection, and stirring, when the system is stable , the initiator ammonium persulfate 0.0025g (accounting for 0.0026% of the total mass of the material) was added to the three-necked bottle, the timing was started, the reaction was stopped after 5h, the obtained emulsion was removed, and centrifuged at 3000r / min or natural sedimentation to obtain a monod...

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Abstract

The invention provides a method for preparing a three-dimensional ordered macroporous material by using a water-soluble colloidal crystal as a template. The method comprises the steps of preparing the colloidal crystal template by using the prepared water-soluble monodisperse polyacrylamide nanoparticles and removing the template by using water as the solvent to obtain the three-dimensional ordered macroporous material. The invention develops a new method for preparing three-dimensional ordered macroporous polymer. Comparing with the traditional hydrofluoric acid etching and calcining, the method provided by the invention can maintain the gloss and chemical structure of the polymer, and is also energy-saving and environment-friendly.

Description

technical field [0001] The technical solution of the invention relates to the fields of polymer materials and inorganic porous materials, in particular to the preparation of three-dimensional ordered macroporous materials using water-soluble nanometer microspheres as colloidal crystal templates. Background technique [0002] Three-dimensionally ordered macroporous materials (3DOM), also known as inverse opals, refer to highly monodisperse spherical pores with uniform pore size that are highly uniformly dispersed in three-dimensional space. It is a new type of material in the matrix (polymer, inorganic oxide, semiconductor material, metal, etc.), and each hole is connected with a small hole. Compared with other porous materials, three-dimensional ordered macroporous materials have a unique and well-arranged macroporous structure, which not only has the characteristics of single pore size and orderly arrangement of pore structure in three-dimensional space, but also has large ...

Claims

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Application Information

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IPC IPC(8): C08L33/20C08L25/06C08L33/12C08F120/44C08F112/08C08F120/14C08F120/56C08J9/26C01B33/12C01G23/053
CPCY02P20/10
Inventor 张旭李雅宁王小梅刘盘阁
Owner HEBEI UNIV OF TECH
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