A kind of preparation method and application of polymer microsphere

A technology of polymer microspheres and base spheres, applied in ion exchange, ion exchange regeneration, ion exchange treatment devices, etc., can solve the problems of weak retention capacity, unsuitable for large-scale preparation and separation of fullerenes, etc., and achieve high crosslinking degree , easy to control and repeat, and improve the effect of separation efficiency
CN102659966BActive Publication Date: 2016-07-06SUZHOU NANOMICRO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU NANOMICRO TECH CO LTD
Publication Date
2016-07-06

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Abstract

The invention discloses a surface-modified polystyrene polymer microsphere, a preparation method and an application thereof. It uses polystyrene as the base ball, and the surface contains a brominated benzene ring structure with π-π interaction with fullerene. This structure is obtained by replacing the hydrogen atom on the benzene ring contained in the base ball with a bromine atom. The steps are as follows: : Use monodisperse polystyrene microspheres with a particle size of 10-40 μm as the base ball, mix with the catalyst, add an aliphatic halogenated hydrocarbon solvent, and slowly add a brominating agent dropwise under stirring conditions for substitution reaction; the taken out The microspheres are washed and dried to obtain a polymer microsphere, which is used as a liquid chromatography stationary phase for separating fullerenes whose mobile phase is toluene or o-xylene. The surface-modified polystyrene polymer microspheres provided by the invention only need one step for preparation, are simple in process and easy to repeat, are suitable for large-scale production of fullerenes, and have the characteristics of high separation efficiency and good effect.
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Description

technical field

[0001] The invention relates to a surface-modified polystyrene polymer microsphere, a preparation method and an application thereof. technical background

[0002] Fullerene is a general term for hollow spherical, ellipsoidal, cylindrical or tubular molecules composed entirely of carbon, and is the third allotrope of carbon after diamond and graphite [1]. Before the discovery of fullerene, the only allotropes of carbon were graphite, diamond, and amorphous carbon (such as coal ash and carbon). Its discovery greatly expanded the number of allotropes of carbon. Its special structure endows fullerene materials with excellent properties in superconductivity, magnetism, optics, and catalysis. As a typical carbon nano-functional material, fullerene will play an important role in the fields of industry, national defense, energy, scientific research, biomedicine, etc., and has a broad market prospect [2]. This product was included in the National New Material Indust...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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