Method for rapidly preparing high-quality acrylamide gel film

An acrylamide gel film and acrylamide technology are applied in the field of rapidly preparing high-quality acrylamide gel films, and can solve the problems of low efficiency, complicated operation, long film-forming time, etc., so as to improve the film-forming quality and shorten the film-forming time. time, the effect of suitable promotion and application

Active Publication Date: 2019-05-17
HEBEI UNIVERSITY
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  • Application Information

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Problems solved by technology

[0012] The purpose of the present invention is to provide a method for rapidly preparing high-quality acrylamide gel membranes to solve the problems of complex operation, long film-forming time and low efficiency in existing preparation methods

Method used

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  • Method for rapidly preparing high-quality acrylamide gel film

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Embodiment 1

[0029] The preparation method of high-quality acrylamide gel membrane provided by the present invention comprises the steps:

[0030] (1) Use a camera to wipe the glassware and two pieces of float glass with absorbent cotton dipped in acetone and absolute ethanol in sequence, and wipe off the small particles such as dust attached to the surface of the glassware and float glass, and initially remove the dust on the surface. Then put the glassware and two pieces of float glass in acetone and use ultrasonic cleaning for 10 minutes, then put them in alcohol and use ultrasonic cleaning for 10 minutes, then take them out with the camera and put them in deionized water and use ultrasonic cleaning for 5 minutes Minutes, use N after taking out 2 blow dry.

[0031] (2) Preparation of acrylamide prepolymerization solution:

[0032] Take 1ml of polyethylene glycol diacrylate (average molecular weight 600) into the glassware treated in step (1), add 0.15g of N-isopropylacrylamide (NIPAM,...

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Abstract

The invention provides a method for rapidly preparing a high-quality acrylamide gel film. The method comprises the following steps: (a) a piece of glassware and two pieces of float glass are pretreated; (b) poly(ethylene glycol) diacrylate is added to the glassware, then N-isopropylacrylamide and N,N'-methylenebisacrylamide are added and dissolved, an initiator and a catalyst are added, and the substances are ultrasonically mixed in an ice bath; (c) one piece of float glass is soaked in the initiator, the other piece of float glass is soaked in the catalyst, and the initiator and the catalystare uniformly dispersed on the surfaces of the corresponding float glass by ultrasonic waves; (d) one piece of float glass is placed on a water plane, an acrylamide prepolymer solution is added dropwise, then the other piece of float glass is pressed on the acrylamide prepolymer solution, and gelation is performed for 2-4 h. The film forming time of acrylamide gel is shortened effectively, the film forming quality is improved, and the defect that harsh film forming conditions and equipment are required by the conventional method is overcome.

Description

technical field [0001] The invention relates to the technical field of acrylamide gel film preparation, in particular to a method for rapidly preparing high-quality acrylamide gel film. Background technique [0002] Acrylamide gel is composed of monomer acrylamide and cross-linking agent N,N-methylenebisacrylamide in catalyst N,N,N',N'-tetramethylethylenediamine and initiator (ammonium persulfate or nucleus flavin) polymerized and cross-linked into a three-dimensional network gel. [0003] Acrylamide gels have the following properties: [0004] (1) At a certain concentration, the gel is transparent, elastic and has good mechanical properties; [0005] (2) Stable chemical properties, no chemical reaction with the separated sample, and insoluble in many solvents; [0006] (3) Relatively stable to pH and temperature changes; [0007] (4) There is almost no adsorption and electroosmosis, as long as the monomer acrylamide has high purity and the operating conditions are consi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F220/54C08F222/38C08J5/18
Inventor 闫小兵王博平
Owner HEBEI UNIVERSITY
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