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Mono-dispersed nano/micron polymer hollow microsphere resin and method for synthesizing the same

A technology of hollow microspheres and polymers, applied in the field of preparation of nano/micro polymer hollow microspheres, which can solve the problems of difficult removal of stabilizers and dispersants, difficulties in large-scale application of self-assembly methods, and atom transfer radical polymerization conditions Harsh and other problems, to achieve the effect of particle cleaning

Inactive Publication Date: 2008-01-30
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stabilizers and dispersants attached to the surface of hollow polymer microspheres made by emulsion polymerization and dispersion polymerization are difficult to remove, the conditions required by atom transfer radical polymerization are harsh, and the self-assembly method is difficult to achieve large-scale application. Application of method

Method used

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  • Mono-dispersed nano/micron polymer hollow microsphere resin and method for synthesizing the same
  • Mono-dispersed nano/micron polymer hollow microsphere resin and method for synthesizing the same
  • Mono-dispersed nano/micron polymer hollow microsphere resin and method for synthesizing the same

Examples

Experimental program
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Effect test

example 1

[0039] Example 1: 20mL of methacrylic acid (MAA), 0.4g of azobisisobutyronitrile (AIBN) were dispersed in 800mL of acetonitrile, put into a clean 1000mL two-necked bottle, equipped with a fractionating column, a condenser tube and a receiving bottle. The reaction flask was placed in an electric heating mantle and heated slowly, from room temperature (25° C.) to boiling within 30 minutes, and the solvent began to be evaporated. After boiling for 10 minutes, the reaction solution became cloudy. 400 mL of acetonitrile was evaporated within 2 hours to stop the reaction. Take 10mL of reaction solution, add 0.3mL divinylbenzene (DVB-80) and 0.12g AIBN, then add 30mL acetonitrile, add to a 50mL two-neck flask, install a fractionating column, a condenser tube and a receiving bottle. The reaction bottle was placed in an electric heating mantle and heated slowly, from room temperature (25°C) to boiling within 15 minutes, and controlled to evaporate 20 mL of acetonitrile within 1.5 hours...

example 2

[0040]Example 2: 20mL of methacrylic acid (MAA), 0.4g of azobisisobutyronitrile (AIBN) were dispersed in 800mL of acetonitrile, put into a clean 1000mL two-necked bottle, equipped with a fractionating column, a condenser tube and a receiving bottle. The reaction flask was placed in an electric heating mantle and heated slowly, from room temperature (25° C.) to boiling within 30 minutes, and the solvent began to be evaporated. After boiling for 10 minutes, the reaction solution became cloudy. 400 mL of acetonitrile was evaporated within 2 hours to stop the reaction. Take 10mL of the resulting reaction solution, centrifuge, pour off the supernatant, remove unreacted monomers, initiators and oligomers, disperse in 40mL of acetonitrile, add 0.2mL DVB-80 and 0.004g AIBN, put into 50mL two In the bottle, install the fractionating column, condenser tube and receiving bottle. The reaction flask was placed in an electric heating mantle and heated slowly, from room temperature (25°C) t...

example 3

[0041] Example 3: 20mL of methacrylic acid (MAA), 0.4g of azobisisobutyronitrile (AIBN) were dispersed in 800mL of acetonitrile, put into a clean 1000mL two-necked bottle, equipped with a fractionating column, a condenser tube and a receiving bottle. The reaction flask was placed in an electric heating mantle and heated slowly, from room temperature (25° C.) to boiling within 30 minutes, and the solvent began to be evaporated. After boiling for 10 minutes, the reaction solution became cloudy. 400 mL of acetonitrile was evaporated within 2 hours to stop the reaction. Get the reaction liquid 10mL of gained, centrifuge, incline supernatant liquid, remove unreacted monomer, initiator and oligomer, disperse in 40mL acetonitrile, add 0.3mL DVB-80 and 0.3mL methyl methacrylate ( MMA) was added into a 50mL two-necked flask, and the temperature was raised to boiling in 15 minutes, and 20mL of acetonitrile was evaporated within 1.5 hours. The reaction solution was centrifuged to pour o...

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Abstract

The invention relates to a preparation method of isodisperse nano / micron polymer hollow microsphere. The hollow microsphere with 10 nano-10 micron inner diameter and 10 nano-200 nano wall thickness is polyene type monomer homopolymer or copolymer (20-100 percent crosslinking) of polyene type monomer and other functional monoene type monomer. The polyene type monomer or the polyene type monomer and other functional monoene type monomer are distilled with the existence of a template to prepare a series of sodisperse sodisperse hollow microsphere with different inner diameters and wall thicknesses after precipitation polymerization. The invention has the advantages of simple conditions, easy operation, pure products and being easy to get raw materials and environment protective and so on. The nano / micron polymer hollow microsphere of the invention can be applied to systems with controllable transportation and release such as dyes, cosmetics, medicine, enzymes, proteins, etc. as well as light fillings, nano micro vessels, low dielectric constant materials, catalyst carrier and has very important application value in aspects such as artificial cell, disease diagnosis, biological material separation, etc.

Description

Technical field [0001] The invention relates to a preparation method of nano / micro polymer hollow microspheres, in particular to a preparation method of monodisperse nano / micro polymer hollow microspheres. Background technique [0002] In recent years, nanoscale and micron-scale hollow polymer microspheres have been widely used in biomedicine, chemical engineering and materials due to their high specific surface area and low density, and their hollow parts can accommodate a large number of guest molecules or large-sized guests. Fields, such as controllable transport and release systems for dyes, cosmetics, drugs and enzymes, proteins, etc., as well as lightweight fillers, nano-micro containers, low dielectric constant materials and catalyst carriers, in artificial cells, disease diagnosis and biological Material separation and other aspects also have important application value. Bibliographical reports prepare the method for hollow polymer microsphere structure material a l...

Claims

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Application Information

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IPC IPC(8): C08F12/36C08F20/56C08F20/06C08F20/32C08F26/06C08F2/44C08F4/04C08F4/34C08J9/26
Inventor 杨新林刘广宇李国良白锋黄礴
Owner NANKAI UNIV
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