- Syntheses and Reaction of Metal Organics. XVII. Synthesis of Silane Coupling Agent Having Fluorocarbon Chain and Surface Modification of Glass Plate
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Four silane coupling agents, 1H,1H,2H,2H-polyfluoroalkyl(dimethoxy)(methyl)silanes (1H,1H,2H,2H-henicosafluorododecyl(dimethoxy)(methyl)silane, C10F21C2H4Si(CH3)(OCH3)2, 1H,1H,2H,2H-heptadecafluorodecyl(dimethoxy)(methyl)silane, C8F17C2H4Si(CH3)(OCH3)2, 1H,1H,2H,2H-tridecafluorooctyl(dimethoxy)(methyl)silane, C6F13C2H4Si(CH3)(OCH3)2, and 1H,1H,2H,2H-nonafluorohexyl(dimethoxy)(methyl)silane, C4F9C2H4Si(CH3)(OCH3)2), were prepared by the hydrosilylation of dichloro(methyl)silane with the corresponding 1H,1H,2H,2H-polyfluoro-1-alkene in the presence of hydrogen hexachloroplatinate(IV), followed by the reaction with sodium methoxide.The surface modification of glass plate was attempted uisng these products.From measurements of the contact angles θ(deg) of water and oleic acid against a modified glass plate surface, the coupling agents were found to have high modification ability.The oxidation resistance of the modified glass surface was also investigated.
- Yoshino, Norio,Yamamoto, Yasushi,Seto, Tsuyoshi,Tominaga, Shin-ichi,Kawase, Tokuzo
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- Fluorine-based organic polysilazane or preparation methode thereof
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The present invention relates to a fluorine-based organic polysilazane or a method for manufacturing the same. More specifically, the present invention relates to: a polysilazane in which lyphophilic property is removed by introducing a fluorinated alkyl group; and a method for manufacturing the same. In order to achieve the object, the present invention is to manufacture the fluorine-based organic polysilazane by ammonolysis of perfluorodichlorosilane and halosilane under ammonia gas.COPYRIGHT KIPO 2020
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Paragraph 0061; 0064-0066
(2020/04/04)
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- Redistribution of dichlorosilanes and dihydridosilanes. Synthesis of chloro hydridosilanes
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The redistribution of dichlorosilanes RSi(CH3)Cl2 and dihydridosilanes RSi(CH3)H2, prepared by reduction of the homologues dichlorosilanes, in the presence of a quaternary ammonium salt is presented. The influence of the nature of R (fluoroalkyl chain RFCH2CH2 with RF = CF3, C4F9, C8F17, alkyl chain R = C6H13 or aromatic R = C6H5) and of the temperature on the rate of the reaction is studied. The equilibrium constants and free enthalpies are calculated and discussed taking into account the nature of R. The new products described were characterized from I.R, 1H, 19F and 29Si NMR spectroscopies.
- Benouargha,Boulahia,Boutevin,Caporiccio,Guida-Pietrasanta,Ratsimihety
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