LUBRICATING AGENT, MAGNETIC RECORDING MEDIUM, AND HEAD SLIDER

摘要

This invention provides a lubricating agent containing a fluoropolymer produced by reacting a compound having the following structure with glycidol. The above constitution can realize a reduced film thickness and can realize the provision of a lubricating agent having a high level of adsorptivity onto a coating face. HOCH2CH(OH)CH2OCH2CF2(OCF2CF2)m(OCF2)nOCF2CH2OCH2CH(OH)CH2OH (7) wherein m and n are a real number of zero or more, provided that m and n are not simultaneously zero. (OCF2CF2)m(OCF2)n means that structural units of CF2O and structural units of C2F4O may be mutually arranged in a random form or in a block form.