| 摘要 |
A compound of the formula (I), and lubricant, and magnetic disk each using the same
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒA-(CH 2 -Rf-CH 2 O-B-O) n -CH 2 -Rf-CH 2 -A€ƒ€ƒ€ƒ€ƒ€ƒ(I)
wherein n is an integer of 1 to 4, A is a group of the formula (a) below, and B is a group of the formula (b) below, p being 1 or 2, R being C 1-4 fluoroalkyl, Rf is -CF 2 O(CF 2 CF 2 O) x (CF 2 O) y CF 2 - or -CF 2 CF 2 O(CF 2 CF 2 CF 2 O) z CF 2 CF 2 -, x, y and z being each a real number of 0 to 50. |
