Preparation method of one-dimensional photonic crystal structure polymer film

A technology of one-dimensional photonic crystals and structural polymers, which is applied in the measurement of color/spectral properties, material analysis by optical means, and material analysis by observing the effect on chemical indicators, etc. Large, polymer damage and other problems, to achieve the effect of short detection time, reduced detection cost, and fast detection speed

Active Publication Date: 2020-11-20
DALIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Molecular imprinting technology is a process in which a specific recognition site is formed in a polymer induced by a template. In the traditional molecular imprinting detection method, when a single functional monomer is used for polymerization, it will be affected by the ionic strength of the solution, etc., causing swelling The rate is large, the polymer is damaged, etc., which is not conducive to the preparation of the polymer

Method used

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  • Preparation method of one-dimensional photonic crystal structure polymer film
  • Preparation method of one-dimensional photonic crystal structure polymer film
  • Preparation method of one-dimensional photonic crystal structure polymer film

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Example 1 Preparation of Methamphetamine Molecularly Imprinted Polymer Precursor

[0027] (1) The template molecule methamphetamine (1.00mmol), the functional monomer methacrylic acid (7.29mmol) and acrylamide (30.96mmol) and the cross-linking agent N,N'-methylenebisacrylamide (0.55mmol) , added to a round-bottomed flask containing 2.4 mL of methanol and mixed, stirred overnight at 25°C for 12 hours;

[0028] (2) Add photoinitiator 2959 (0.059mmol) into the solution, stir evenly for 30min, deoxygenate with nitrogen for 5min, then obtain polymer precursor solution, set aside.

Embodiment 2 1

[0029] Embodiment 2 Preparation of one-dimensional photonic crystal structure polymer film

[0030] (1) Take a clean glass slide, drop 250 μL of the prepared precursor solution on the glass slide, and then take a 20mm×20mm one-dimensional photonic crystal template with a span of 761nm, a height of 75nm, and a width of 350nm along one side of the precursor solution. The side is slowly covered on the solution, and no air bubbles can appear. The photonic crystal template such as figure 1 shown;

[0031] (2) Place the glass sheet under an ultraviolet lamp to initiate polymerization for 2 hours, and remove it after polymerization to obtain a one-dimensional photonic crystal polymer film.

Embodiment 3

[0032] Example 3 Elution of the one-dimensional photonic crystal structure polymer film prepared in Example 2

[0033] Prepare 10mL of methanol:acetic acid=9:1 solution, place the polymerized one-dimensional photonic crystal polymer film in the solution, and perform ultrasonic cleaning;

[0034] (1) Change the eluent once every 15 minutes of ultrasonication, and change it 4 times, for a total of 1 hour of ultrasonic elution;

[0035] (2) After ultrasonic elution, rinse the surface of the molecularly imprinted membrane with methanol solution to wash off excess acetic acid solution to obtain a methamphetamine molecularly imprinted membrane, see figure 2 shown.

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Abstract

The invention relates to a preparation method of a one-dimensional photonic crystal structure polymer film, and relates to the technical field of photonic crystals and molecular imprinting. Accordingto the technical scheme, the preparation method mainly comprises the following steps: mixing template molecules, a functional monomer, acrylamide, a cross-linking agent and methanol, stirring overnight for 12 hours, adding a photoinitiator, deoxidizing with nitrogen to obtain a precursor solution, dropwise adding the precursor solution on a clean glass sheet, covering the solution with a one-dimensional photonic crystal template, placing the solution under an ultraviolet lamp for irradiation to initiate polymerization, and removing the one-dimensional photonic crystal structure polymer film after polymerization to obtain the one-dimensional photonic crystal structure polymer film. The photonic crystal is combined with the molecular imprinting technology, compared with a traditional singlemolecular imprinting preparation and detection method, visual detection is achieved, and the change of the structure of the molecularly imprinted membrane can be judged through the change of the colorof the polymer membrane in the detection process.

Description

technical field [0001] The invention relates to the technical field of photonic crystals and molecular imprinting, in particular to a preparation method of a polymer film with a one-dimensional photonic crystal structure. Background technique [0002] Molecular imprinting technology is a process in which a specific recognition site is formed in a polymer induced by a template. In the traditional molecular imprinting detection method, when a single functional monomer is used for polymerization, it will be affected by the ionic strength of the solution, etc., causing swelling The rate is large, the polymer is damaged, etc., which is not conducive to the preparation of the polymer. Contents of the invention [0003] The invention provides a preparation method of a one-dimensional photonic crystal structure polymer film. Using a one-dimensional photonic crystal template with a span of 761nm, a height of 75nm, and a width of 350nm, by combining photonic crystal and molecular i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F220/06C08F222/38C08F2/48C08J9/26G01N21/25G01N21/47G01N21/78C08L33/26
CPCC08F220/56C08F2/48C08J9/26G01N21/25G01N21/4738G01N21/78C08J2201/0424C08J2333/26C08F220/06C08F222/385
Inventor 郭明靳秀一姜岚马少敏魏桓
Owner DALIAN UNIV
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