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Preparation method for functionalized crosslinked polymer resin microspheres

A cross-linked polymer and resin microsphere technology, which is applied in the field of cross-linked polymer resin preparation, can solve the problems of large-scale production difficulties, high investment cost of functionalized cross-linked polymer resin microspheres, and achieve monodispersity of particle size Good results

Inactive Publication Date: 2010-11-10
季生象 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the problems of high input cost and difficulty in large-scale production for the preparation of functionalized crosslinked polymer resin microspheres, the present invention proposes a method for preparing functionalized crosslinked polymer resin microspheres, the method comprising:

Method used

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  • Preparation method for functionalized crosslinked polymer resin microspheres
  • Preparation method for functionalized crosslinked polymer resin microspheres
  • Preparation method for functionalized crosslinked polymer resin microspheres

Examples

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Embodiment 1

[0032] Add 8 g of styrene, 2 g of divinylbenzene, 0.2 g of benzoyl peroxide, 5 g of isooctane, and 2 g of cis-9-hexadecen-1-ol into 100 g of 1% polyvinyl alcohol in the emulsifier of the aqueous solution. Emulsify at room temperature for 5 minutes at 300 atmospheres, then reduce the pressure to 100 atmospheres and emulsify for another 10 minutes. The emulsified mixed solution was heated to 80°C for polymerization for 6 hours. After the reaction, the polymer product was washed 3 times with 100 milliliters of distilled water, then extracted with acetone for 10 hours in a Soxhlet extractor, and finally vacuum-dried at room temperature to obtain surface-functionalized porous polymer polystyrene microspheres, such as figure 1 As shown, the scale bar in the figure is 200 μm. The resulting microspheres had a particle size of 100 microns, a pore size of 50 nm, and a hydroxyl functionality of 600 micromol / g. figure 2 The pore size and distribution of polystyrene microspheres are sh...

Embodiment 2

[0034] Add 8 g of styrene, 2 g of divinylbenzene, 0.2 g of benzoyl peroxide, 5 g of isooctane, and 1 g of cis-9-hexadecen-1-ol and 1 g of cetyl alcohol to 100 g 1% polyvinyl alcohol solution in an emulsifier. Emulsify at room temperature for 5 minutes at 300 atmospheres, then reduce the pressure to 100 atmospheres and emulsify for another 10 minutes. Then the emulsified mixed solution was heated to 80° C. for 6 hours of polymerization. After the reaction, the polymer product was washed three times with 100 ml of distilled water, then extracted with acetone for 10 hours in a Soxhlet extractor, and finally vacuum-dried at room temperature to obtain surface-functionalized porous polymer polystyrene microspheres. The resulting microspheres had a particle size of 100 microns, a pore size of 50 nm and a hydroxyl functionality of 300 micromol / g. The addition method of divinylbenzene is one-time addition or injection addition in batches.

Embodiment 3

[0036] Add 8 g of styrene, 4 g of divinylbenzene, 0.2 g of benzoyl peroxide, 5 g of isooctane, and 3 g of cis-9-hexadecen-1-ol into 100 g of 1% polyvinyl alcohol in the emulsifier of the aqueous solution. Emulsify at room temperature for 2 minutes at 350 atmospheres, then reduce the pressure to 100 atmospheres and emulsify for another 10 minutes. Then the emulsified mixed solution was heated to 80° C. for 6 hours of polymerization. After the reaction, the polymer product was washed three times with 100 ml of distilled water, then extracted with acetone for 10 hours in a Soxhlet extractor, and finally vacuum-dried at room temperature to obtain surface-functionalized porous polymer polystyrene microspheres. The resulting microspheres had a particle size of 80 microns, a pore size of 50 nm, and a hydroxyl functionality of 900 micromol / g. The addition method of divinylbenzene is one-time addition or injection addition in batches.

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Abstract

The invention discloses a preparation method for functionalized crosslinked polymer resin microspheres, which belongs to the technical field of crosslinked polymer resin preparation. The method includes the following steps: dissolving water-soluble polymer in deionized water to form aqueous solution; under the protection of inert gas, adding monomer molecules, crosslinking agent, initiator, pore-forming agent and functionalized surfactant into the aqueous solution; emulsifying the aqueous solution, and carrying out emulsion polymerization on the emulsified aqueous solution; and washing, extracting and drying emulsion polymerization product. Since the invention uses the surfactant with a functional group to functionalize the surfaces of the polymer resin microspheres, not only is the grain diameter monodispersity of the obtained microspheres good, but also all the functional group can be distributed on the surfaces of the microspheres and the pores.

Description

technical field [0001] The invention relates to the technical field of preparation of crosslinked polymer resins, in particular to a method for preparing functionalized crosslinked polymer resin microspheres. Background technique [0002] Polymer resin microspheres with controllable particle size, because of their high heat resistance, solvent resistance, good mechanical strength, good surface reactivity and other characteristics, are widely used in standard metering, chromatography technology, chemical engineering, biomedicine, etc. , Microelectronics technology, polymer catalysis and other high-tech fields have broad application prospects. For example, in chemical engineering, polymer resin microspheres are widely used in many fields such as coatings, paper surface processing, plastic additives, and building materials; in chromatography technology, polymer resin microspheres are widely used in chromatography column packing , ion exchange resins, bioseparation and catalyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F212/36C08F216/04C08F220/14C08F222/20C08F2/22C08F6/16C08J9/14
Inventor 季生象张建斌陈宁张岧
Owner 季生象
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