Fluorine-containing silane compound
A novel fluorine-containing silane compound is provided. The fluorine-containing silane compound is capable of providing excellent water repellency and oil repellency, and is useful as a fluorine-containing silane coupling agent with applicability to a wide variety of applications, even if it has a chemical structure, which is free of a perfluoroalkyl group of 8 or more of carbon atoms; and has no risk of formation of PFOS or PFOA causing bioaccumulation potential and environment adaptability problems. A fluorine-containing silane compound containing at least one of each of a nitrogen-containing perfluoroalkyl group and an alkoxysilyl group in the molecule is selected.
1. A fluorine-containing silane compound comprising a perfluoroamine structure represented by a general formula (1) or a general formula (A1) below,
wherein, in the general formula (1), m and n are integers from 1 to 6, which are identical or different; Rf 1 is a straight-chain or a branched-chain perfluoroalkylene group of 1 to 6 carbon atoms,
in the general formula (A 1), Rf 2 , Rf 3 , and Rf 4 are straight-chain or branched-chain perfluoroalkylene groups of 1 to 6 carbon atoms,
in the general formula (1) and the general formula (A1), X is a hydrocarbon group of 2 to 10 carbon atoms and includes one or more selected from an ether bond, a CO—NH bond, and an O—CO—NH bond,
in the general formula (1) and the general formula (A1), R 1 and Z are an alkoxy group or a halogen group, a being an integer from 0 to 3, and
in the general formula (A1), Y is an oxygen atom, a nitrogen atom, or a CF 2 group.
2. The fluorine-containing silane compound according to claim 1 , wherein Z is an alkoxy group.