| abstract |
PROBLEM TO BE SOLVED: To provide a compound used for a hard disk lubricant having good CSS durability. A -CF 2 O -, - CF 2 CF 2 O-, perfluorooxyalkylene units selected from is more sequences randomly distributed, further comprising a functional end group A, the following equation (1) A phosphazene compound represented by the formula: A —OCH 2 CF 2 O (CF 2 CF 2 O) p (CF 2 O) qC F 2 CH 2 OH (1) [where A is a group represented by the following formula (a). Here, R represents a hydrogen atom, C 1 to 4 alkyl, a C 1 to 4 alkoxy, a C 1 to 4 haloalkyl, aryl, substituted aryl, aryloxy, substituted aryloxy, p and q are 1 30 real numbers. ] |