Membrane material of inorganic - organic hybrid pair of amphoteric ion, and preparation method

Membrane material of inorganic - organic hybrid pair of amphoteric ion, and preparation method

  • CN 101,091,878 A
  • Filed: 04/15/2007
  • Published: 12/26/2007
  • Est. Priority Date: 04/15/2007
  • Status: Active Grant
First Claim
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1. , a kind of inorganic-organic hybridization amphion is to the membrane material preparation method, be in inert atmosphere or air, with silane coupler and glycol reaction, or with silane coupler and organic amine and glycol reaction, the macromolecule amine derivant that generates is a raw material, silane coupler is 1:

  • 2~

    20 with the ratio of solvent in molar ratio, with the dissolution with solvents raw material to the solution that obtains containing the hydridization presoma;

    It is characterized in that;

    under 0-90 ℃

    temperature, the above-mentioned hydridization presoma that makes is carried out aminating reaction makes it contain a kind of anion exchange groups, and then carry out sulfonation or oxidation reaction makes it contain a kind of cation exchange group, promptly contained the inorganic-organic hybridization amphion of yin, yang ion-exchange group simultaneously to membrane material;

    Or earlier the above-mentioned hydridization precursor solution that makes is carried out sulfonation or oxidation reaction, make it contain a kind of cation exchange group, and then carry out aminating reaction, make it contain a kind of anion exchange groups, the inorganic-organic hybridization amphion that is also contained the yin, yang ion-exchange group simultaneously is to membrane material;

    Described raw material silane coupler is siloxanes or the halosilanes that contains ammonia alkyl, aryl, epoxy radicals or sulfydryl, and its chemical formula is [XR 1YR 2] PSiX 4-p, or [XYR 1] pSiY " 4-p, X, Y are respectively primary amine, secondary amine, aryl, sulfydryl or epoxide group, R in the formula 1And R 2Be respectively the alkyl or aryl that contains 0-10 and 1-10 carbon;

    Y " is the alkoxy or halogen of 1-5 carbon;

    The span of p is the integer of 1-3;

    Described organic amine refers to;

    ethylenediamine, benzidine, p-phenylenediamine (PPD), diaminodiphenyl ether, N, N-dihydroxy ethyl methylamine, trimethylamine, triethylamine, tripropyl amine (TPA) or tri-n-butylamine;

    Described glycol refers to;

    ethylene glycol, butanediol, hexylene glycol, polyethylene glycol or polyvinyl alcohol;

    Described macromolecule amine derivant refers to;

    polyurethane, polyethers, polyamide, polyimides, polysiloxanes and polyurea copolymers or poly-silicon ammonia ester;

    Described solvent refers to;

    N, dinethylformamide (DMF), N, N-dimethylacetylamide (DMAC), oxolane (THF), methyl-sulfoxide (DMSO), n-butanol, isobutanol, carbon tetrachloride, chloroform, benzene or toluene;

    Described dissolution with solvents method refers to;

    hydrolysis, aminolysis, alcoholysis or ring-opening reaction;

    Described aminating reaction is meant under 0-90 ℃

    temperature, above-mentioned hydridization presoma is joined in the excessive halohydrocarbon solution reacted 2-48 hour, obtains anion exchange groups on strand;

    Its mol ratio is the content of amido in the hydridization presoma;

    halogenated hydrocarbons=1;

    2-8;

    Described halogenated hydrocarbons refers to iodomethane, bromoethane, chloroethanes, 1,2-Bromofume, 1,2-dichloroethanes or their mixture;

    Described sulfonating reaction is meant under 0-90 ℃

    temperature, and the phenyl in the strand, epoxide group are transformed into sulfonic acid or sulfinic acid group;

    Used sulfonated reagent refers to oleum, chlorosulfonic acid, pyrosulfuric acid or pyrosulfurous acid, and the salt of pyrosulfuric acid or pyrosulfurous acid;

    Described oxidation reaction is meant the sulfhydryl oxidase in the strand is formed sulfonic acid or sulfinic acid group;

    Used oxidant refers to hydrogen peroxide, potassium permanganate, potassium bichromate or hypochlorous acid.

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