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A kind of weakly polar rosin-based polymer microspheres and its preparation method and application

A polymer microsphere and rosin-based technology, applied in the field of high performance liquid chromatography, can solve problems that have not been reported, and achieve the effects of good permeability, small expansion and high mechanical strength

Active Publication Date: 2019-12-24
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] About a kind of weakly polar rosin-based polymer microspheres and its preparation method and application, there is no report so far

Method used

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  • A kind of weakly polar rosin-based polymer microspheres and its preparation method and application
  • A kind of weakly polar rosin-based polymer microspheres and its preparation method and application
  • A kind of weakly polar rosin-based polymer microspheres and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Add 400 g of deionized water and 0.8 g of polyvinyl alcohol (the mass ratio of ionized water to polyvinyl alcohol is 50:0.1) into a 500 mL beaker, and heat to 100° C. to completely dissolve the polyvinyl alcohol to obtain an aqueous phase.

[0039] Weigh 6.0 g of propylene pimaric acid ethylene glycol acrylate, dissolve it in 20.0 g of chloroform, and use ultrasonic waves to promote dissolution. After the propylene pimaric acid ethylene glycol acrylate is completely dissolved, add 1.0 g of methyl methacrylate, 0.1 g of azobisisobutyronitrile (the mass ratio of functional monomer, crosslinking agent, solvent, and initiator is 1:6:20:0.1), ultrasonically oscillate for 2 to 10 minutes, and disperse evenly to obtain an oil phase.

[0040] Add the prepared oil phase to the water phase, emulsify with a fast membrane emulsifier to obtain an emulsion, move the emulsion to a 1L three-necked flask, heat up and polymerize at a stirring speed of 200rad / min, and keep the temperature ...

Embodiment 2

[0044] Add 400 g of deionized water and 16 g of polyvinyl alcohol (the mass ratio of ionized water to polyvinyl alcohol is 50:2) into a 500 mL beaker, and heat to 100° C. to completely dissolve the polyvinyl alcohol to obtain an aqueous phase.

[0045] Weigh 6.0g of propylene pimaric acid ethylene glycol acrylate, dissolve it in 100.0g of chloroform, and use ultrasonic waves to promote dissolution. After the propylene pimaric acid ethylene glycol acrylate is completely dissolved, add 20.0g of methyl methacrylate, 5g of Azobisisobutyronitrile (the mass ratio of functional monomer, crosslinking agent, solvent, and initiator is 20:6:100:5), ultrasonically oscillates for 2-10 minutes, and disperses evenly to obtain an oil phase.

[0046]Add the prepared oil phase to the water phase, emulsify with a fast membrane emulsifier to obtain an emulsion, move the emulsion to a 1L three-necked flask, heat up and polymerize at a stirring speed of 150rad / min, and keep the temperature constant ...

Embodiment 3

[0050] Add 400 g of deionized water and 5 g of polyvinyl alcohol (the mass ratio of ionized water to polyvinyl alcohol is 50:0.6) into a 500 mL beaker, and heat to 100° C. to completely dissolve the polyvinyl alcohol to obtain an aqueous phase.

[0051] Weigh 6.0g of propylene pimaric acid ethylene glycol acrylate, dissolve it in 80.0g of chloroform, and use ultrasonic waves to promote dissolution. After the propylene pimaric acid ethylene glycol acrylate is completely dissolved, add 15.0g of methyl methacrylate, 3g of Azobisisobutyronitrile (the mass ratio of functional monomer, cross-linking agent, solvent, and initiator is 15:6:80:3), ultrasonically oscillates for 2-10 minutes, and disperses evenly to obtain an oil phase.

[0052] Add the prepared oil phase to the water phase, emulsify with a fast membrane emulsifier to obtain an emulsion, move the emulsion to a 1L three-necked flask, heat up and polymerize at a stirring speed of 200rad / min, and keep the temperature constant...

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Abstract

The invention discloses a weakly polar rosin-based polymer microsphere and its preparation method and application. Methyl methacrylate is used as a monomer, acrylopimaric acid ethylene glycol acrylate is used as a crosslinking agent, and membrane emulsification-microsuspension is adopted. Weakly polar rosin-based polymer microspheres are prepared by polymerization; the microspheres are spherical porous materials with a particle size distribution of 2-5μm, an average pore size of 10-13nm, and a specific surface area of ​​20-80m 2 / g. The weakly polar rosin-based polymer microspheres have the advantages of non-toxicity, environmental protection, uniform particle size, etc., and the packed preparative chromatographic column has a good separation effect on natural products.

Description

technical field [0001] The invention belongs to the field of high performance liquid chromatography, in particular to a weakly polar rosin-based polymer microsphere and its preparation method and application. Background technique [0002] High-performance liquid chromatography is a new separation and analysis technology developed based on classical liquid chromatography and gas chromatography. It has the advantages of high separation efficiency, high selectivity, high detection sensitivity, and fast analysis speed. Because it does not need to vaporize the sample to be tested, it only needs to be prepared into a solution, which makes up for the shortcomings of the gas chromatography method and expands the application range of the chromatography, especially in the increasing application of impurity detection and drug purification. The essence of chromatography is separation, and the core of separation is the stationary phase. According to different substrates, HPLC stationary...

Claims

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Application Information

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IPC IPC(8): C08F289/00C08F220/14C08F2/20B01J20/28B01J20/285B01D15/08
Inventor 雷福厚王海洋李鹏飞王婷覃丽婷王振
Owner GUANGXI UNIV FOR NATITIES