Preparation method of near-infrared light response hydrogel

Preparation method of near-infrared light response hydrogel

  • CN 103,408,708 B
  • Filed: 07/15/2013
  • Issued: 02/08/2017
  • Est. Priority Date: 07/15/2013
  • Status: Active Grant
First Claim
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1. a kind of preparation method of the hydrogel of near infrared light response, including:

  • (1) part is added in deionized water, dispersed with stirring, is subsequently adding soluble copper salt and sulfide, pre-reaction 1-2 is littleWhen, obtain mixed dispersion liquid;

    At 120-180 DEG C, make above-mentioned mixed dispersion liquid reaction 8-24 hour, reaction end is vulcanizedCopper;

    In described mixed dispersion liquid, the mass fraction of part is 1-20%, and the mass fraction of soluble copper salt is 0.01-1%, sulphurCompound mass fraction is 0.05-5%, and remaining is deionized water;

    Described part is polyvinylpyrrolidone or polyethylene glycol;

    ItsIn middle step (1), obtained copper sulfide is hexagon laminated structure, and particle diameter is 50-200nm;

    (2) crosslinking agent, water-soluble monomer, the copper sulfide of step (1) gained, initiator, catalyst are added in deionized water,Obtain hydrogel pre-polymerization liquid;

    Then above-mentioned hydrogel pre-polymerization liquid is polymerized at 0-50 DEG C, polymerization time is 1-48 hour, obtainsThe hydrogel of near infrared light response;

    In described hydrogel pre-polymerization liquid, the mass fraction of crosslinking agent is 0.01-1%, water-soluble monoThe mass fraction of body is 2-40%, and the mass fraction of copper sulfide is 0.001-1%, and the mass fraction of initiator is 0.01-1%,The mass fraction of catalyst is 0.01-1%, and remaining is deionized water;

    Described initiator is potassium sulfate, ammonium persulfate, over cureOne of sour sodium;

    Catalyst is N, N, N '"'"', one of N '"'"'-tetramethylethylenediamine, sodium thiosulfate, triethanolamine.

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