Method for preparing mono dispersed functionalized polymer microsphere

A polymer, monodisperse technology, applied in the field of preparation of monodisperse functionalized polymer particles, can solve the problems of complex equipment, unfavorable industrial production, long time consumption, etc. Effect

Inactive Publication Date: 2005-09-07
SOUTHEAST UNIV
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This process takes a long time and the equipment is c...

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  • Method for preparing mono dispersed functionalized polymer microsphere
  • Method for preparing mono dispersed functionalized polymer microsphere
  • Method for preparing mono dispersed functionalized polymer microsphere

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Embodiment Construction

[0021] The preparation method of the monodisperse functionalized polymer microspheres of the present invention is as follows: vinyl monomers and water-soluble additives are first removed from the polymerization inhibitor by vacuum distillation, then added to a reaction kettle with a reflux condenser, and then Add water or water-alcohol azeotropic system, add persulfate initiator to start polymerization after 3-10 minutes after boiling, control monomer concentration between 5-20% and aqueous additive concentration between 0.5-2% , After 1.5 to 2 hours, monodisperse polymer particles can be obtained. The monomer is methacrylate, or acrylate, or styrene series, or vinyl ester, or oil-soluble propylene derivative, or vinyl chloride. The persulfate initiator used in the polymerization process is potassium persulfate or ammonium persulfate. The water-soluble additive as the functional group of the polymer is methacrylic acid, or acrylic acid, or acrolein, or water-soluble vinylic m...

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Abstract

A method for preparing monodisperse functionalization polymer microsphere which relates to the method of preparing monodisperse functionalization polymer particle, which can be extensively used in clinical medical detecting, biological chemistry, optics, semi-conductor processing, environmental detecting, gene order and function analysis, material processing, chemical industry separating engineering, electron microscope and so on. The method comprises removing the polymerization impedient from ethylene monomer and hydrosolvent additive with the method of vacuum distillation; adding them to the autoclave equipped with reflux condenser and adding water or water-alcohol azeotropic system; adding peroxodisulfate trigger for polymerization 3~10 minutes after boiling, controlling the unit concentration between 5~20% and the hydrosolvent additive concentration 0.5~2%, and getting the product 1.5~2 hours later.

Description

technical field [0001] The invention relates to a preparation method of monodisperse functionalized polymer particles, which can be widely used in clinical medical detection, biochemistry, optics, semiconductor processing, environmental detection, forensic identification, customs agricultural product inspection and quarantine, gene sequence and functional analysis , material processing, chemical separation engineering, electron microscopy and other fields. Background technique [0002] Monodisperse microspheres refer to microspheres with the same particle shape and size, with a diameter between 0.01 and 10 μm. They can be used for self-assembly of photonic crystals, chromatographic column packing, electron microscope standard samples, detection of biomacromolecules and cells, etc. . The usual monodisperse microspheres are divided into two types: inorganic and polymer. The former mainly include silica, gold, silver, silver halide, titanium dioxid...

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Application Information

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IPC IPC(8): C08F2/16C08F10/02
Inventor 顾忠泽陈海华
Owner SOUTHEAST UNIV
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