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Fluorine-containing acrylate monomer and preparation method and application thereof
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A technology of acrylate and monomer, which is applied in the field of fluorine-containing acrylate monomer and its preparation and application, to achieve the effect of simple intermediate process, convenient operation, and avoiding high persistence and accumulation
Active Publication Date: 2010-04-07
ZHEJIANG UNIV OF TECH
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Embodiment 1
[0024] Add 50 mL of 1,2-dichloroethane, 17.4 g (0.1 mol) of 2,4-TDI, 1.9 g (0.008 mol) of tetraethyltin, and 0.5 g of hydroquinone into a 250 mL four-necked flask as a polymerization inhibitor, Stir, heat up to 75°C, add dropwise 13.0 g (0.1 mol) of hydroxyethyl methacrylate, after the dropwise addition, TLC detection, follow the reaction progress, keep the temperature and stir for 4 hours. 53.6 g (0.1 mol) of 2-methoxy-3-perfluorononenyloxypropanol was added dropwise. After the dropwise addition was completed, TLC detection was carried out to track the reaction progress, and the reaction was carried out while maintaining the temperature and stirring for 5 h. The reaction is completed, distillation and desolvation, silica gelcolumn chromatography separation (V 环己烷 :V 乙酸乙酯 = 7: 3), the yellow paste I was obtained after removing the solvent 1 (n=9, R is CH 3 ), yield 66.0%, purity 99.8%.
[0029] React according to the method of Example 1, but 2-methoxyl-3-perfluorononenyloxypropanol is changed to 2-methoxyl-3-perfluorohexenyloxypropanol 38.6g (0.1mol), Other conditions are identical with embodiment 1, obtain pale yellow paste I 2 (n=6, R is CH 3 ), yield 70.1%, purity 99.7%.
[0032] Carry out reaction according to embodiment 1 method, but hydroxyethyl methacrylate is changed into hydroxyethyl acrylate 11.6g (0.1mol), other conditions are identical with embodiment 1, obtain yellow paste I 3 (n=9, R is H), the yield is 69.9%, and the purity is 99.4%.
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Abstract
The invention discloses a novel fluorine-containing acrylatemonomer and a synthesis method and application thereof. The synthesis method comprises the following steps: (1) taking toluene-2,4-diisocyanate shown in a formula (II) as a raw material to perform first-step addition reaction with 2-hydroxyethyl methacrylate shown in a formula (III) by taking organic tin as a catalyst in a polar aproticsolvent, and reacting until the II basically disappears to obtain reaction liquid A containing an intermediate shown in a formula (IV); and (2) directly adding the reaction liquid A to 2-methoxyl-3-perfluorenoxy diol shown in a formula (V) to perform second-step addition reaction, obtaining reaction liquid B after the reaction is over, and performing solvent removal and column chromatography on the reaction liquid B to obtain the fluorine-containing (methyl) acrylatemonomer shown in a formula (I). The invention provides the fluorine-containing acrylatemonomer with a brand-new structure and capable of serving as a waterproof and oilproof treating agent; and the synthesis method is simple, and the fluorine-containing acrylate monomer can be prepared by a one-pot method.
Description
(1) Technical field [0001] The invention relates to a fluorine-containing acrylate monomer, a preparation method and application thereof. (2) Background technology [0002] Polymer surfactants usually refer to substances with a relative molecular mass of more than several thousand and significant surface activity. They have a long history of application, and some natural polymers have been used as polymer surfactants [Leather Science and Engineering, 2004, 14(6):24-30]. Compared with low-molecular-weight surfactants, polymer surfactants have the advantages of poor permeability, good film-forming properties, low or no toxicity, environmental friendliness, good dispersion, emulsification, and stability [Chemical Progress, 2005, 17(1 ): 151-156]. The introduction of fluorine atoms into polymer surfactants produces polymer fluorine-containing surfactants. Polymer fluorine-containing surfactants not only have the excellent performance of polymer surfactants, but also have the "...
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