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Dimaleimide resin microball, its preparation method and application thereof

A bismaleimide resin and maleimide resin technology, applied in the field of liquid chromatography packing, can solve the problems of poor heat resistance, poor solvent resistance, insufficient rigidity, etc., and achieve easy cleaning and high mechanical strength , Overcome the effect of poor heat resistance

Inactive Publication Date: 2006-10-11
桂林电子工业学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resin microsphere chromatographic fillers mentioned above all have disadvantages such as poor heat resistance, poor solvent resistance and insufficient rigidity.

Method used

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  • Dimaleimide resin microball, its preparation method and application thereof
  • Dimaleimide resin microball, its preparation method and application thereof
  • Dimaleimide resin microball, its preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 50 grams of bismaleimide prepolymer, 50 grams of allyl bisphenol A, and 20 grams of polyetherimide were heated and stirred at 150°C for vacuum degassing and mixing; then the resulting mixture was mixed Decompress and pour into a preheated mold; then cure the mixture placed in the mold at 160°C for 3 hours, then at 185°C for 3 hours, and finally at 200°C for 3 hours; after curing Add 400-500 grams of chloroform to the obtained hardened product, dissolve and wash the polyetherimide contained in the hardened product with the assistance of ultrasonic vibration, wash repeatedly for 3 times, settle, and finally obtain a double horse of 5-7 microns 97 grams of imide resin microspheres.

Embodiment 2

[0017] 57 grams of bismaleimide prepolymer, 43 grams of allyl bisphenol A, and 30 grams of polyester imide were heated and compacted at 170°C for vacuum degassing and mixing; then the resulting mixture was mixed Decompress and pour into a preheated mold; then cure the mixture placed in the mold at 160°C for 3 hours, then at 175°C for 3 hours, and finally at 200°C for 3 hours; after curing Add 500 to 700 grams of N,N'-dimethylacetamide to the obtained hardened product, and dissolve and wash the polyesterimide contained in the hardened product with the assistance of mechanical ball milling, wash repeatedly 3 times, settle, Finally, 96 grams of bismaleimide resin microspheres of 3 to 7 microns were obtained.

Embodiment 3

[0019] Mix 57 grams of bismaleimide prepolymer, 43 grams of allyl bisphenol A, and 40 grams of polyethersulfone in a small screw extruder at 250°C; then pour the mixture into a preheated In a good mold; then cure the mixture placed in the mold at 160°C for 3 hours, then at 180°C for 3 hours, and finally at 200°C for 3 hours; add the cured product obtained after curing to 450-500 gram of N-methylpyrrolidone, and dissolve and wash the polyethersulfone contained in the hardened product with the aid of stirring, wash repeatedly 3 times, settle, and finally obtain bismaleimide resin microspheres of 2 to 6 microns 96 grams. Example 4:

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Abstract

The present invention relates to bismaleimide resin microspheres, its preparation method and application. The preparation method of the bismaleimide resin microspheres is as follows: 50 to 90 parts by weight of bismaleimide resin are pre-prepared Polymer and 10-50 parts by weight of inert thermoplastic resin are mixed at 80-180 ° C; or 35-60 parts by weight of bismaleimide resin prepolymer, 10-50 parts by weight of inert thermoplastic resin and 15-50 parts by weight Parts by weight of allyl bisphenol A are mixed at 80-180°C, and the resulting mixture is poured into a mold; then the mixture placed in the mold is first cured at 150-180°C for 2-5 hours, and then at 180°C Curing at ~250°C for 2-8 hours; finally dissolving and washing the inert thermoplastic resin contained in the hardened product with an organic solvent to obtain bismaleimide resin microspheres. The bismaleimide resin microsphere of the present invention is an ideal liquid chromatography filler, and can be applied to chromatographic separation and fast chromatographic separation, as well as purification, analysis and fast separation of life science and bioengineering products.

Description

(1) Technical field: [0001] The invention relates to a liquid chromatography filler, specifically bismaleimide resin microspheres, and also relates to a preparation method and application of the bismaleimide resin microspheres. (two) background technology: [0002] In recent years, high-performance hydrophobic interaction chromatography (HPHIC) technology has been developed rapidly. This technology mainly involves monodisperse, non-porous cross-linked polymer microspheres, their preparation methods and applications. It can avoid the use of a elution system containing a large amount of organic solvents, and can effectively maintain the biological activity of the sample to be separated, so it is widely used in the separation and purification of biological macromolecules, especially proteins. For example, the application number is 86101723, and the Chinese invention patent titled "Uniform Polymer Microspheres for Liquid Chromatography and Its Preparation" discloses the use of l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L35/00C08J3/12B29B9/00G01N30/00
Inventor 罗炎李长远
Owner 桂林电子工业学院
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