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Porous polymer whole separating material and preparation method thereof

A technology of porous polymers and monolithic materials, applied in chemical instruments and methods, and other chemical processes, can solve the problems of narrow monomer selection range, inconvenient operation, and high condition requirements, and achieve wide monomer selection range, pore The effect of high rate and good application prospect

Inactive Publication Date: 2010-06-16
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two methods have great limitations: the selection range of monomers for step-by-step polymerization is very narrow; the requirements for active polymerization of nitroxide radicals are too high, and the operation is inconvenient

Method used

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  • Porous polymer whole separating material and preparation method thereof
  • Porous polymer whole separating material and preparation method thereof
  • Porous polymer whole separating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Preparation of embodiment 1, poly(GMA-co-EDMA) porous polymer monolithic material

[0017] 0.37mL glycidyl methacrylate (GMA), 0.20mL ethylene glycol methacrylate (EDMA), 0.38mL cyclohexanone, 0.76mL dodecanol, 0.012g azobisisobutyronitrile (AIBN), 0.076g poly(BMA) 70 -b-(GMA) 10 The mixed solution was ultrasonically dissolved into a transparent homogeneous solution, and nitrogen gas was passed for 15 minutes to remove oxygen. Then put the mixed solution into a dry stainless steel empty column tube, seal it and place it in a water bath at 55°C for 24 hours, then take it out, connect it to a high-pressure pump, wash out the porogen and unreacted monomer with tetrahydrofuran, and obtain the porous Polymer monolithic materials.

[0018] The microscopic morphology of the pillars of the porous polymer monolith prepared above was observed with a scanning electron microscope, and the results are shown in the attached figure 2 shown. It can be seen from the figure that th...

Embodiment 2

[0019] Embodiment 2, the preparation of poly(BMA-co-EDMA) porous polymer monolithic material

[0020] 0.37mL n-butyl methacrylate (BMA), 0.20mL ethylene glycol methacrylate (EDMA), 0.17mL cyclohexanone, 1.54mL dodecanol, 0.012g azobisisobutyronitrile (AIBN), 8.5mg poly(BMA) 70 -b-(GMA) 20 The mixed solution was ultrasonically dissolved into a transparent homogeneous solution, and nitrogen gas was passed for 15 minutes to remove oxygen. Then put the mixed solution into a dry stainless steel empty column tube, seal it and place it in a water bath at 55°C for 24 hours, then take it out, connect it to a high-pressure pump, wash out the porogen and unreacted monomer with tetrahydrofuran, and obtain the porous Polymer monolithic materials.

[0021] The microstructure of the porous polymer monolithic material prepared above was observed with a scanning electron microscope. It was a three-dimensional network skeleton structure with a through-pore diameter of 3 μm and an average ske...

Embodiment 3

[0022] Embodiment 3, the preparation of poly(BMA-co-EDMA) porous polymer monolithic material

[0023] 0.37mL n-butyl methacrylate (BMA), 0.20mL ethylene glycol methacrylate (EDMA), 0.114mL cyclohexanone, 1.03mL dodecanol, 0.012g azobisisobutyronitrile (AIBN), 11.5mg poly(BMA) 70 -b-(GMA) 70 The mixed solution was ultrasonically dissolved into a transparent homogeneous solution, and nitrogen gas was passed for 15 minutes to remove oxygen. Then put the mixed solution into a dry stainless steel empty column tube, seal it and place it in a water bath at 55°C for 24 hours, then take it out, connect it to a high-pressure pump, wash out the porogen and unreacted monomer with tetrahydrofuran, and obtain the porous Polymer monolithic materials.

[0024] The microstructure of the porous polymer monolithic material prepared above was observed with a scanning electron microscope. It was a three-dimensional network skeleton structure with a through-pore diameter of 0.2 μm and an average...

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Abstract

The invention discloses a porous polymer whole material, a preparation method and application thereof. The porous polymer whole material has a regular three-dimensional network framework structure, and consists of a polymer framework and through holes, wherein the surface and / or inside of the polymer framework is provided with nanometer mesopores; the diameter of the through holes is between 0.2 and 5.0 mu m; the diameter of the mesopores is between 2 and 50nm; and the size of the framework is between 0.1 and 1.0 mu m. The preparation method adopts a free radical polymerization method, and regulates a phase separation process of a reaction system by adding two amphiphilic block copolymers into a common free radical polymerization system so as to obtain the polymer whole material with the three-dimensional network framework structure. The polymer whole material has regular and orderly structure and high porosity, and can be widely applied in the field of high-efficiency quick separation of biological macromolecules.

Description

technical field [0001] The invention relates to a porous polymer integral material, a preparation method and application thereof. Background technique [0002] As a new type of carrier and medium material, porous polymer monolith has the advantages of high efficiency and fast mass transfer, so it has been widely used in separation, catalysis, ion exchange, solid phase extraction and other fields. However, at present, the internal structure of most polymer monolithic materials is a microsphere packing structure, and the inhomogeneity of this internal porous structure will result in reduced permeability, large eddy current diffusion, low specific surface area and surface binding sites. Disadvantages such as inhomogeneity limit its application in some fields. [0003] The reason for this result is that the current polymer monolithic materials are mostly prepared by free radical polymerization, and the interaction between the rapidly growing polymer chains during the polymeriza...

Claims

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Application Information

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IPC IPC(8): C08F287/00C08J9/28B01J20/285
Inventor 齐莉辛培勇张荣月魏晓奕姚春荷乔娟
Owner INST OF CHEM CHINESE ACAD OF SCI
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