Space length adjustable crystal gel and method for preparing same

Abstract

The crystal gel with adjustable spacing and its preparation method relate to a crystal gel with adjustable spacing and a preparation method thereof. The prepared crystal gel with adjustable spacing has a spectral energy gap from 200nm to 900nm. The preparation method: spherical particles with a diameter of 80-250nm The colloid is placed in high-pressure water for dialysis, and the dialysis water is replaced for at least 10 minutes each time, until the conductivity of the dialysis water is 0.1-10μs / cm. The colloid after electric field dialysis is ultrasonically treated, and the colloid dispersed by ultrasonic Dilute the monomer solution of the neutral hydrogel polymer, and add the initiator caused by ultraviolet light to the diluted colloid solution and mix well. The above-mentioned monomer solution of the neutral hydrogel polymer includes acrylamide polymer monomer body and methylene acrylamide as a cross-linking agent, remove oxygen and carbon dioxide, stand still, and initiate polymerization to form gel under the condition of ultraviolet light irradiation, that is, crystal gel.

Description

technical field

[0001] The invention relates to a crystal glue with adjustable spacing and a preparation method thereof. Background technique

[0002] Colloidal crystals are composed of three-dimensional periodic arrangement of dielectric materials, and colloidal crystals have many unique properties. These unique properties can be used to manufacture electronic, optical and sensing elements, among others. Colloidal crystal glue has been used in the detection and research of molecules affecting life activities such as lead ions, glucose, and inosine.

[0003] At present, there are many patents and articles on the research of colloidal crystals in the world. There are reports on the research on closely packed colloidal crystals in China, but there is no report on the research on non-closely packed colloidal crystals. There are many preparation methods for high-quality colloidal crystals, mainly including precipitation volatilization method, convecti...