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Macroporous resin microspheres and preparation method and application thereof

A macroporous resin and microsphere technology, which is applied in chemical instruments and methods, pharmaceutical formulations, cosmetic preparations, etc., can solve the problems of low mechanical strength and easy breakage of macroporous resin microspheres, and achieve uniform acid and alkali resistance, Good acid and alkali resistance, simple operation

Inactive Publication Date: 2012-07-18
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides a method for preparing macroporous resin microspheres, which solves the technical problems that the macroporous resin microspheres prepared by the preparation method in the prior art have low mechanical strength and are easily broken

Method used

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  • Macroporous resin microspheres and preparation method and application thereof
  • Macroporous resin microspheres and preparation method and application thereof
  • Macroporous resin microspheres and preparation method and application thereof

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preparation example Construction

[0021] see figure 1 , figure 1 Show the flowchart of the method for preparing macroporous resin microspheres in the embodiment of the present invention, including the following steps:

[0022] Step S01, preparing an aqueous phase solution:

[0023] preparing an aqueous phase solution containing 1.8% to 2.4% by weight of polyvinyl alcohol and 2% to 6% by weight of sodium chloride;

[0024] Step S02, preparing an oil phase solution:

[0025] Mix the punching agent, styrene, acrylate monomer and divinylbenzene in a weight ratio of 100:80-120:100-150 to obtain an oil phase mixture, and add the oil phase mixture to the water phase solution , stirring to obtain an oil phase solution, the ratio of the punching agent to the total weight of the styrene, acrylate monomer and divinylbenzene is 0.2 to 0.25:1, the weight of the oil phase mixture and the water phase solution The ratio is 1:8~12;

[0026] Step S03, oil-water mixing reaction:

[0027] Add the toluene solution containing...

Embodiment 1

[0053] Take 2.42g of PVA and 5.50g of NaCl, add them to 102g of distilled water, heat to dissolve at 90°C, filter to remove trace suspended impurities, and obtain transparent PVA and NaCl aqueous solutions with different contents, that is, the continuous phase water phase;

[0054] The continuous water phase is composed of PVA and NaCl aqueous solution, which is added to a three-port reactor equipped with a stirrer, a condenser tube, and an air guide tube;

[0055] Take 3.0g, 3.0g, 4.0g, and 1.5g of styrene, methyl methacrylate, divinylbenzene, and n-dodecane. After mixing completely, add them to water, add 1.5g of toluene solution containing 0.03g of AIBN, and form dispersed phase oil phase;

[0056] The water phase of the continuous phase and the oil phase of the dispersed phase are in a weight ratio of 11:1, and the oil phase of the dispersed phase is added to the reactor, and the two phases are fully dispersed at a mechanical stirring speed of 500 rpm, and then nitrogen is...

Embodiment 2

[0059] Take 2.20g of PVA and 6.60g of NaCl, add them to 101.2g of distilled water, heat and dissolve at 90°C, filter to remove trace suspended impurities, and obtain transparent PVA and NaCl aqueous solutions with different contents, that is, the continuous phase water phase;

[0060] The continuous water phase is composed of PVA and NaCl aqueous solution, which is added to a three-port reactor equipped with a stirrer, a condenser tube, and an air guide tube;

[0061] Get styrene, methyl methacrylate, divinylbenzene, n-dodecane 3.0g, 3.0g, 4.8g, 1.5g, after mixing completely, add into water, add 1.03g toluene solution containing 0.03g BPO (ie Dissolve 0.03 gram of BPO with 1.0 gram of toluene), constitute the dispersed phase oil phase;

[0062] The water phase of the continuous phase and the oil phase of the dispersed phase are in a weight ratio of 11:1, and the oil phase of the dispersed phase is added to the reactor, and the two phases are fully dispersed at a mechanical sti...

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Abstract

The invention is applied in the technical field of new materials, and provides macroporous resin microspheres and a preparation method and application thereof. The preparation method for the macroporous resin microspheres comprises preparation of an aqueous phase solution, preparation of an oil phase solution, water-oil mixing reaction and ester exchange reaction. According to the preparation method for the macroporous resin microspheres, the reaction raw materials and the reaction conditions are selected in the aqueous phase and oil phase reaction, so that the prepared macroporous resin microspheres have high mechanical strength, acid and alkali resistance and uniform granularity; by the ester exchange reaction, the surfaces of the prepared macroporous resin microspheres have a considerable quantity of active amino; and the preparation method for the macroporous resin microspheres is easy to operate, low in cost and very suitable for industrialized production.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a macroporous resin microsphere, its preparation method and application. Background technique [0002] Macroporous resin microsphere is a new type of functional material with excellent performance. It has the characteristics of surface effect, volume effect, magnetic effect, biocompatibility, and functional groups. It has a very wide range of applications in the fields of science and chromatographic separation. Due to the specific chemical structure of chitosan resin, it has a high affinity to many harmful substances in water, and is widely used in the treatment of industrial wastewater containing toxic metal substances, metal mine wastewater, printing and dyeing wastewater, and papermaking wastewater. , making it a high-efficiency water treatment agent highly recommended in the field of environmental protection. [0003] In recent years, after the introduction of vario...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/36C08F212/08C08F220/14C08F220/18C08F2/20C08F8/32C08J9/28B01J20/26B01J20/30C12N11/08C12N11/04A61K47/32A61K8/81
Inventor 孙自才陈建军陈思群杨建李冬霜张维丽
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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