Abstract
Fluorinated compounds have many excellent properties including water and oil repellency, high lubricativity and stain protectivity as represented by poly (tetrafluoroethylene). Many kinds of silane coupling agents and hybrid surfactants having a fluorocarbon chain were prepared as surface modifiers, and the properties and applications were studied. Silane coupling agents prepared, F (CF2) 10CH2CH2SiX2 (X = Cl, OCH3, NCO), were studied on the application to dentistry. Novel fluorinated silane coupling agents with a biphenyl structure, F (CF2) n- (C6H4) 2-CH2CH2Si (OCH3) 3, were synthesized. Modified glass surface with these compounds indicated the properties of highly heat-resistance up to 350t, oxidation-resistance, and acid-resistance. New types of surfactants having both a fluorocarbon chain and a hydrocarbon chain in their molecules, namely hybrid surfactants, were prepared. Hybrid surfactants would be prospective chemicals in industrial, medical and dental fields.
