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Polymer microsphere preparation method and polymer microsphere application

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. The effect of large diameter and high degree of cross-linking

Inactive Publication Date: 2013-01-09
苏州大德碳纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the stationary phase is mounted on a 150*4.6 mm stainless steel column for C 60 and C 70 The retention time is only 2-4 min, indicating that the immobilization is relatively C 60 and C 70 The retention capacity is weak, and it is not suitable for large-scale preparation and separation of fullerenes

Method used

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  • Polymer microsphere preparation method and polymer microsphere application
  • Polymer microsphere preparation method and polymer microsphere application
  • Polymer microsphere preparation method and polymer microsphere application

Examples

Experimental program
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Embodiment 1

[0022] According to the technical scheme disclosed in Chinese invention patent CN101186661, polystyrene microspheres are prepared, which are recorded as UniPS 30-300. Weigh 40.00 g of polystyrene microspheres (UniPS 30-300 microspheres, about 30 μm in diameter) as the base ball in a dry three-necked flask, add 300 mL of dichloromethane solvent, and stir the microspheres evenly , then add 11.41 g SnCl with a syringe 4 in the suspension above. During the reaction process of the three-necked bottle, attention should be paid to airtightness, and the sealing ring and pipes that contact the reaction solution and steam should be corrosion-resistant. The temperature was slowly raised to 50°C to ensure a stable reaction, and the reaction was carried out overnight. After the reaction is completed, the reaction suspension solution is lowered to room temperature. The suspension was filtered with a sand core funnel, and the microspheres were washed with acetone, ethanol, dilute hydrochl...

Embodiment 2

[0029] The reaction apparatus is the same as in Example 1. In a dry 250 mL three-neck flask, 10.00 g of polystyrene UniPS 30-300 microspheres prepared according to the technical scheme disclosed in Chinese invention patent CN101186661 were weighed in advance. First add 75 mL of chloroform solvent into the three-necked flask, and stir the microspheres evenly. Finally, with the addition of 2.23 g of SnCl 4 in the suspension above. Reaction control and ball washing steps are the same as in Example 1.

[0030] Mix 10.8 g of chloromethylated microspheres obtained above with 4.00 g of coronene, add 75 mL of chloroform solvent into a three-neck flask, and stir the microspheres evenly. Finally, add 2.23 g SnCl 4 in the suspension above. Reaction control and ball washing steps are the same as in Example 1. 11.9 g of permeate-functionalized polymer microspheres can be obtained.

[0031] The polymer microspheres prepared in the present invention contain fused-ring aromatic hydroca...

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Abstract

The invention discloses a polymer microsphere and preparation method and application thereof. Polystyrene is used for making a base sphere with the surface comprising a condensed-nuclei aromatic structure in pi-pi interaction with fullerene, and the structure is obtained by substituting a hydrogen atom on a benzene ring contained in the base sphere by chloromethyl and reacting with condensed-nuclei aromatics. The method includes: using a monodispersed polystyrene microsphere as the base sphere, mixing with catalyst SnCl4, adding aliphatic halogenate varsol, slowly dripping chloromethylation reagent while stirring for substitution reaction, allowing the reacted microsphere to react with the condensed-nuclei aromatics, and washing and drying the obtained microsphere to obtain a polymer microsphere with a fullerene separated liquid chromatographic stationary phase serving as a mobile phase. The preparation method of the surface modified polystyrene polymer microsphere only needs two steps, is simple in process, easy to repeat, suitable for massive production of fullerene and has the advantages of high separation efficiency and effectiveness.

Description

technical field [0001] The invention relates to the field of polymer compounds, in particular to a surface-modified polystyrene polymer microsphere, a preparation method and an application thereof. technical background [0002] Fullerene is a kind of hollow cage-like all-carbon molecule composed of 12 five-membered rings and several six-membered rings. In 1985, Kroto, Smalley and Curl studied the formation of carbon dust in interstellar space. , During the mass spectrometry experiment of laser vaporized graphite, it was found that it is the third allotrope of carbon after diamond and graphite. Its special structure endows fullerene materials with excellent properties in superconductivity, magnetism, optics, and catalysis. Among them, C composed of 60 carbon atoms 60 - "Buckminsterfullerene" is exceptionally stable and has perfect spherical symmetry. C 60 The emergence of carbon makes people understand a whole new carbon world, and immediately arouses the widespread atten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08L25/06B01D15/08
Inventor 王永向张永春
Owner 苏州大德碳纳米科技有限公司
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