Three-dimensional ordered monodisperse macroporous material, and its preparing method and functionizing method

A three-dimensional ordered, macroporous material technology, applied in the field of polymer materials, can solve the problems of non-uniform pore size, non-uniform pore size of porous materials, and inability to precisely control the pore size, achieving fast crystallization rate, easy functionalization, and thermal dimensional stability. good effect

Inactive Publication Date: 2007-03-28
HEBEI UNIV OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] CN1342608 "Preparation method of a macroporous microporous multi-level ordered pore material" reported that the microporous molecular sieve nanocrystals synthesized by hydrothermal technology are the building units of the multi-level structure, which are formed at low temperature under the guidance of the macroporous template agent. High-temperature demoulding, the method for preparing high-order macroporous-microporous multi-level ordered pore materials belongs to the field of molecular sieve inorganic materials. The pore materials prepared by this invention have non-uniform pore diameters; the same CN1093381 "super large "Preparation method of pore network polyurethane material" relates to a preparation method of ultra-large pore network polyurethane material that can be used as filter material, sound-absorbing material, flow guide material and lining material. The main principle is to use foaming technology to prepare ultra-large pore One of the problems of preparing porous materials by foaming polymer materials is that the pore diameters of the prepared pore materials are not uniform, and the pore diameters cannot be precisely controlled; CN1752134 "macroporous nanocomposite resin materials and their preparation methods" mainly solve the problems that have not been involved in the previous technology. Problems with ion exchange resin nanocomposite resin materials and methods for their preparation, which are used in industrial production for the catalytic hydration of ethylene oxide

Method used

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  • Three-dimensional ordered monodisperse macroporous material, and its preparing method and functionizing method
  • Three-dimensional ordered monodisperse macroporous material, and its preparing method and functionizing method
  • Three-dimensional ordered monodisperse macroporous material, and its preparing method and functionizing method

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Preparation of 3DOM syndiotactic polystyrene (3DOM sPS) with an average pore diameter of 80 nm.

[0055] (1) Preparation of colloidal crystal template with an average particle size of 120nm

[0056] At room temperature, in a 500ml three-necked bottle equipped with an electric stirring device, add successively 10g, 72g, 6.5g, and 3.2g of ammonia water, absolute ethanol, distilled water, and ethyl orthosilicate at a percentage concentration of 25%. Stirring, the solution becomes turbid, indicating that the hydrolysis of ethyl orthosilicate produces silicon dioxide microspheres, until the solution becomes turbid and no longer changes, that is, the hydrolysis reaction is completed, then the resulting suspension is transferred to a 250ml beaker, and naturally Stand still until the solvent evaporates completely, and a three-dimensional ordered silica colloidal crystal template with an average particle size of 120nm is obtained. The prepared silica colloidal crystal template i...

Embodiment 2

[0060] Preparation of 3DOM Syndiotactic Poly-p-Methylstyrene (sPPMS) with Average Pore Size of 180nm

[0061] (1) Preparation of colloidal crystal template with an average particle size of 340nm

[0062] The other steps of the preparation method of silica colloidal template are the same as in Example 1 (1), except that the quality of ammoniacal liquor, dehydrated alcohol, distilled water, and tetraethyl orthosilicate that the percentage concentration is 25% is respectively 10g, 58g, 7.8g. , and 4.1g, to obtain the colloidal crystal template of 340nm by the average particle diameter, see accompanying drawing 3, as seen from Fig. 3, the average particle diameter is the cohesive and uniform ordered silica microspheres of the 340nm colloidal crystal template.

[0063] (2) Preparation of 3DOM syndiotactic poly-p-methylstyrene (sPPMS) with an average pore size of 180 nm

[0064] All operations are carried out under anhydrous and oxygen-free conditions. Add the silica colloidal cry...

Embodiment 3

[0066] Syndiotactic Copolymer of 3DOM Styrene and p-Methylstyrene (sPMS) with Average Pore Diameter of 460nm Prepared by Direct Functionalization

[0067] (1) Preparation of colloidal crystal template with an average particle size of 548nm

[0068] Other steps of the preparation method of silica colloidal crystal template are the same as embodiment 1 (1), and just adjustment percentage concentration is 25% ammoniacal liquor, dehydrated alcohol, distilled water and tetraethyl orthosilicate quality are respectively 10g, 46g, 6.2g, And 7.8g, promptly obtain the colloidal crystal template that the silica microspheres of 548nm are adhered to each other with an average particle diameter, see accompanying drawing 5, as seen from Fig. sequenced silica microspheres.

[0069] (2) Preparation of a syndiotactic copolymer (sPMS) of 3DOM styrene and p-methylstyrene with an average pore size of 460 nm

[0070] All operations are carried out under anhydrous and oxygen-free conditions. Add ...

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Abstract

The invention relates to three-dimensional order mono-disperse macropore material and its preparation method and functionalizing method. The three-dimensional order mono-disperse macropore material has 91%-98% syndiotactic polyvinyl alcohol arene, 80 nm-1000 nm average aperture. Its preparation method includes the following steps: using colloid crystal mold board method to make three-dimensional order mono-disperse macropore polyvinyl alcohol without water and oxygen by coordination polymerization; using copolymerization or chloromethylation to functionalize. It has the advantages of high melting point, quick crystallization rate, strong chemical resistance, good size stability, processing surface chemical modification, and wide application prospect in sensor, photon chip, photon band gap material preparation etc.

Description

technical field [0001] The technical solution of the invention relates to polymer materials, in particular to a three-dimensional ordered monodisperse macroporous material and its preparation method and functionalization method. Background technique [0002] Three-dimensional ordered macroporous material (hereinafter referred to as 3DOM), due to its uniform and orderly distribution of pores, large pore size, large specific surface area, high porosity, and special photonic crystal properties and size-dependent effects, it is widely used in sensors (Scott R.W.J., Yang S.M., G. Chabanis, et al. Tin Dioxide Opals and Inverted Opals: Near-Ideal Microstructures for Gas Sensors. Adv. Mater, 2001, 13(19): 1468~1472; Qian W.P, Z.Z.Gu, Fujishima A. , et al., Three-Dimensionally Ordered Macroporous Polymer Materials: An Approach for Biosensor Applications. Langmuir, 2002, 18 (11): 4526-4529), photonic chip (Ozin G.A., Yang S.M., The Race for the Photonic Chip: Colloidal Crystal Assemb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F112/08C08F2/44C08F4/642C08J9/26
Inventor 闫卫东张旭李海青
Owner HEBEI UNIV OF TECH
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