A kind of cyclodextrin-based copolymer ceramic green body reinforcing agent and its ATRP preparation method
A technology of ceramic body and cyclodextrin, which is applied in the preparation of cyclodextrin-based copolymer ceramic body enhancer and its ATRP, and the preparation of ceramic enhancer, which can solve the problem of unstable performance, wide molecular weight distribution of enhancer, etc. problem, to achieve the effect of high efficiency and stable performance
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Embodiment 1
[0027] The cyclodextrin-based copolymer ceramic body strengthening agent of the present invention is prepared by the following ATRP method:
[0028] a) Synthesis of modified cyclodextrin monomers containing double bonds: 20.0 parts of α-cyclodextrin are dissolved in DMSO, heated to 65°C with stirring, and then 1.9g of ethacrylic acid chloride is added dropwise to it, After 0.5h dripping, continue to react at 65℃ for 13h, cool to room temperature, add methanol to dilute, precipitate with acetone and filter to obtain a light yellow solid, then wash the light yellow solid with acetone three times to obtain a modified ring containing double bonds Dextrin monomer.
[0029] b) ATRP polymerization: 30.0 parts of sodium acrylate, 15.0 parts of hydroxyethyl acrylate, 30.0 parts of a) modified cyclodextrin monomer containing double bonds, 1.0 part of N, N, N', N', N", N"-methyl hexamethacrylate trivinyl tetraamine, 0.5 part of cuprous bromide, 0.3 part of OP-10, 100 parts of water are added...
Embodiment 2
[0032] The cyclodextrin-based copolymer ceramic body strengthening agent of the present invention is prepared by the following ATRP method:
[0033] a) Synthesis of modified cyclodextrin monomers containing double bonds: Dissolve 20.0 parts of β-cyclodextrin in 40.0 parts of DMSO, heat to 60°C with stirring, and then add 2.4 parts of acryloyl chloride dropwise to it, After 1h addition, continue the reaction at 60°C for 8h, cool to room temperature, add methanol to dilute, precipitate with acetone and filter to obtain a light yellow solid, and then wash the light yellow solid with acetone three times to obtain a modified cyclopaste containing double bonds Fine monomer.
[0034] b) ATRP polymerization: 40.0 parts of sodium methacrylate, 10.0 parts of hydroxypropyl acrylate, 40.0 parts of a) modified cyclodextrin monomer containing double bonds, 0.1 part of 2,2'-bipyridine, 2.5 parts of chlorine Cuprous sulfide, 0.1 part of octadecyl dimethyl vinyl phenyl ammonium chloride, 150.0 par...
Embodiment 3
[0037] The cyclodextrin-based copolymer ceramic body strengthening agent of the present invention is prepared by the following ATRP method:
[0038] a) Synthesis of modified cyclodextrin monomer containing double bond: dissolve 20.0 parts of γ-cyclodextrin in 40.0 parts of DMSO, heat to 70°C with stirring, and then add 4.0 parts of methacrylic acid dropwise to it After the addition of acid chloride, the reaction was continued at 70°C for 10 hours after the dropwise addition of 0.8 hours, cooled to room temperature, diluted with methanol, precipitated with acetone and filtered to obtain a light yellow solid, and then washed with acetone three times to obtain a light yellow solid containing double bonds. Cyclodextrin monomer.
[0039] b) ATRP polymerization: 33.0 parts of a mixture of ammonium ethacrylate and potassium acrylate, 12.0 parts of a mixture of hydroxypropyl ethacrylate and hydroxybutyl ethacrylate, 38.0 parts of a) modified cyclopaste containing double bonds Refined mono...
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