Fluorine-containing carbon chain acrylate, preparation method and application for copolymer thereof
A carbon chain acrylate and copolymer technology, applied in textiles and papermaking, devices for coating liquids on surfaces, coatings, etc. Water repellent effect
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Embodiment 1
[0047] Synthesis of Fluorinated Acrylate Copolymer Using Perfluoroiodohexane as Starting Material
[0048] In a 100ml autoclave, add 10 grams of perfluoroiodohexane, 0.1 grams of cuprous chloride, and 5.43 grams of vinylidene fluoride. Heated to 300°C and reacted for 48 hours. After the reaction was completed, the autoclave was cooled in an ice-water bath to release unreacted vinylidene fluoride gas. Purification gives 1-iodo-2H, 2H-perfluorooctane.
[0049] The relevant data are as follows: 1 H NMR (300MHz, CDCl 3 )δ3.42(m, J=15.6, 2H); 19 FNMR (282MHz, CDCl 3 ( s, 2F), -126.17(m, 2F).
[0050] In a 100ml autoclave, add 27.87 grams of 1-iodo-2H, 2H-perfluorooctane, 0.975 grams of sodium dithionite, 70 milliliters of diglyl dimethyl ether, and feed ethylene gas, react for 8 hours, and find the pressure in the kettle Decrease, stop the reaction, release excess ethylene gas, and distill to obtain 1-iodo-1H, 1H, 2H, 2H, 4H, 4H-perfluorodecane.
[0051] The relevant data ...
Embodiment 2
[0060] Synthesis of Fluorinated Acrylate Copolymer Using Perfluoroiodobutane as Starting Material
[0061] In a 0.1-liter autoclave, add 100 grams of perfluoroiodobutane and 32 grams of vinylidene fluoride. Heated to 300°C and reacted overnight. After the reaction was complete, the autoclave was cooled in an ice-water bath to release the remaining gas. Purification affords pure 1-iodo-2H,2H,4H,4H-perfluorooctane.
[0062] The relevant data are as follows: 1 H NMR (300MHz, CDCl 3 )δ3.41(m, 2H), 2.83(m, 2H); 19 F NMR (282MHz, CDCl 3 )δ -38.82 (m, 2F), -81.08 (m, 3F), -88.10 (m, 2F), -112.60 (m, 2F), -124.42 (s, 2F), -125.87 (m, 2F).
[0063] In a 250 ml three-necked flask, 5.57 g of Na 2 S 2 o 4 Added to 9.48 g of 1-iodo-2H,2H,4H,4H-perfluorooctane, 3.8 g of vinyl ether, and 150 ml of tetrahydrofuran. After 15 hours of reaction, C 4 f 9 CH 2 CF 2 CH 2 CF 2 CH 2 CHO without further purification.
[0064] The above product was dissolved in 40 ml of butanol, and a...
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