| abstract |
A conventional fluorine-containing alkoxysilane compound having a perfluoroalkyl group having 8 or more carbon atoms is used which is suitable for environmental problems and suppresses a decrease in water repellency associated with a decrease in the fluorine number of the perfluoroalkyl group. Provided is a fluorine-containing alkoxysilane compound capable of forming a water-repellent film exhibiting water repellency and durability equivalent to or higher than the case. A fluorine-containing alkoxysilane compound represented by the following general formula (1). Rf-A-B-SiX 3 (1) (In the general formula (1), Rf represents a C 3-7 perfluoroalkyl group, A represents —COO—, —O—, —S—, or —CO—S—, and B represents — (CH 2 ) m — (m = 5 to 20), X represents —OC n H 2n + 1 (n = 1 to 4), and three Xs may be the same or different from each other) [Selection figure] None |