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A kind of preparation method of conductive photonic crystal hydrogel

A technology of photonic crystals and hydrogels, which is applied in the field of preparation of responsive photonic crystal materials, can solve problems such as lack of electrical conductivity, and achieve the effect of simple method and wide application prospect

Inactive Publication Date: 2018-04-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional responsive photonic crystals are almost non-conductive, and the preparation of conductive photonic materials is of great significance.

Method used

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  • A kind of preparation method of conductive photonic crystal hydrogel
  • A kind of preparation method of conductive photonic crystal hydrogel
  • A kind of preparation method of conductive photonic crystal hydrogel

Examples

Experimental program
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Effect test

Embodiment 1

[0030] At room temperature, weigh 1.0g of N-isopropylacrylamide, 0.01g of N-N-methylenebisacrylamide, and 0.2g of acrylic acid, place them in a beaker, and add 120mL of ultrapure water. Magnetic stirring was performed at a stirring speed of 300 rpm for 30 minutes to fully dissolve the reactant and transfer it to a 250 mL three-neck flask. Place the three-necked flask in an oil bath, heat it to 80°C under the protection of argon atmosphere with stirring, condensing and refluxing, and pass in argon for 25 minutes to achieve the purpose of removing dissolved oxygen in ultrapure water. Next, 12 mL of potassium persulfate solution with a mass fraction of 5% was added into the three-necked flask, and reacted at 80° C. for 4 h. After the reaction was completed, the colloidal microsphere emulsion was cooled to room temperature under the protection of an argon atmosphere. Then, the colloidal emulsion was centrifuged at 27° C. at a rotational speed of 11000 rpm to obtain PNIPAM-Co-AAc ...

Embodiment 2

[0033]At room temperature, weigh 1.5g of N-isopropylacrylamide, 0.02g of N-N-methylenebisacrylamide, and 0.3g of acrylic acid, place them in a beaker, and add 140mL of ultrapure water. Magnetic stirring was performed at a stirring speed of 300 rpm for 30 minutes to fully dissolve the reactant and transfer it to a 250 mL three-neck flask. Place the three-neck flask in an oil bath, heat it to 70°C under the protection of argon atmosphere under stirring, condensing and refluxing, and pass in argon for 35 minutes to achieve the purpose of removing dissolved oxygen in ultrapure water. Next, 10 mL of potassium persulfate solution with a mass fraction of 8% was added into the three-necked flask, and reacted at 70° C. for 4 h. After the reaction was completed, the colloidal microsphere emulsion was cooled to room temperature under the protection of an argon atmosphere. Then, the colloidal emulsion was centrifuged at 30° C. at 10,000 rpm to obtain PNIPAM-Co-AAc colloidal microspheres....

Embodiment 3

[0035] At room temperature, weigh 2.5g of N-isopropylacrylamide, 0.03g of N-N-methylenebisacrylamide, and 0.4g of acrylic acid, put them in a beaker, and add 160mL of ultrapure water. Magnetic stirring was performed at a stirring speed of 300 rpm for 30 minutes to fully dissolve the reactant and transfer it to a 250 mL three-neck flask. Place the three-necked flask in an oil bath, heat to 60°C under stirring, condensing and refluxing, and protect by argon atmosphere, and let argon flow in for 40 minutes to achieve the purpose of removing dissolved oxygen in ultrapure water. Next, 9 mL of potassium persulfate solution with a mass fraction of 10% was added into the three-necked flask, and reacted at 60° C. for 6 h. After the reaction was completed, the colloidal microsphere emulsion was cooled to room temperature under the protection of an argon atmosphere. Then, the colloidal emulsion was centrifuged at 33° C. at 8000 rpm to obtain PNIPAM-Co-AAc colloidal microspheres, which w...

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Abstract

The invention relates to a preparation method of a conductive photon crystal aquagel. The preparation method comprises the following steps: dissolving N-isopropyl acrylamide, N,N-methylene-bis acrylamide and acrylic acid in ultrapure water to obtain a reaction solution, heating to 60-80 DEG C and keeping for 15-45 minutes under the conditions of stirring and condensation reflux in an argon protective atmosphere, adding a potassium persulfate solution to react for 4-6 hours to obtain an emulsion, cooling to room temperature in the argon protective atmosphere, centrifugating to obtain PNIPAM-Co-AAc colloid microspheres, and dispersing the PNIPAM-Co-AAc colloid microspheres in ultrapure water to obtain a colloid microsphere dispersion solution; and uniformly mixing the colloid microsphere dispersion solution and a poly(3,4-vinyldioxythienyl)-polystyrolsulfonic acid (PEDOT / PSS) water dispersion solution, and carrying out self-assembly to obtain the conductive photon crystal aquagel. The method is simple and easy to implement, and has important values for the preparation of the conductive photon crystal aquagel.

Description

technical field [0001] The invention belongs to the field of preparation of responsive photonic crystal materials, in particular to a preparation method of conductive photonic crystal hydrogel. Background technique [0002] Photonic Crystal (PC) is a material with a special periodic structure that can regulate the propagation of photons. In 1987, E. Yabnolovitch and S. John proposed the concept of photonic crystals in Physical review letters. In the past two decades, many methods have been developed to construct photonic crystals in different scales. Some of the more classic methods include layer-by-layer self-assembly technology, electrochemical etching technology, laser beam scanning chemical vapor deposition technology and holographic lithography technology. With the in-depth study of photonic crystals, researchers have gradually developed a strong interest in photonic crystal materials that are responsive to the outside world. Photonic crystal structures responsive to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/075C08L33/24C08L65/00C08L25/18C08F220/54C08F222/38C08F220/06
CPCC08F220/54C08J3/075C08J2333/24C08L33/24C08L2205/03C08F222/385C08F220/06C08L65/00C08L25/18
Inventor 李耀刚商胜龙王宏志张青红侯成义
Owner DONGHUA UNIV
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