A kind of methacrylate fluorine-containing monomer and its synthesis method and application
A technology of methacrylic acid and methacryloxy, applied in the field of methacrylate fluorine-containing monomers and their synthesis
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Embodiment 1
[0024] Add 10 mmol of hexafluoropropylene trimer (4.5 g), 11 mmol of (2-hydroxy-3-(methacryloyloxy)) propyl benzoate and 0.045 g of tetrabutyl Ammonium bromide was heated to 40° C. with stirring, and 11 mmol of triethylamine was added dropwise. After the drop was completed, the reaction was continued at an insulated temperature for a total of 10 hours. Transfer the reaction solution to a separatory funnel, add dichloromethane, shake fully and then separate the layers, separate the layers, wash the lower dichloromethane layer with water three times, dry over anhydrous sodium sulfate, filter, evaporate the solvent under reduced pressure, and Silica gel column, with ethyl acetate / petroleum ether volume ratio 1:50 mixture as eluent, methacrylate fluorine-containing monomer benzoic acid (2-perfluorononenyloxy-3-(methacrylic acid) The isolated yield of acyloxy)) propyl ester was 81%.
[0025] 1 H NMR, MS and IR data are described below:
[0026] 1 H NMR (CDCl 3 ) δ ppm; 1.94 (s...
Embodiment 2
[0030] The amount of (2-hydroxy-3-(methacryloyloxy))propyl benzoate was 10 mmol, the catalyst was changed to 0.09 g of benzyltriethylammonium chloride, and other operations were the same as in Example 1. The isolated yield of (2-perfluorononenyloxy-3-(methacryloyloxy))propyl benzoate was 78%.
Embodiment 3
[0032] The organic base was changed to 11 mmol of diisopropylethylamine, the reaction temperature was 70° C., and other operations were the same as in Example 1. The isolated yield of (2-perfluorononenyloxy-3-(methacryloyloxy))propyl benzoate was 78%.
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