Organic fluorine compound, lubricant, and processing method of magnetic recording medium
According to one aspect of the present invention, an organic fluorine compound is represented by a general formula (R-π-E-CH 2 ) 2 -A (1A) (where A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E is an ether bond or an ester bond or a group that is represented by a chemical formula —O—CH 2 CH(OH)CH 2 O— two groups each of which is represented by a general formula R-π-E-CH 2 — may be the same or different, and at least one n among two π is an arylene group).
1. An organic fluorine compound that is represented by a general formula
(R-π-E-CH 2 ) 2 -A (1A)
where A is a divalent perfluoropolyether group, π a is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E is an ester bond or a group that is represented by a chemical formula
—OCH 2 CH(OH)CH 2 O—
two groups each of which is represented by a general formula
R-π-E-CH 2 —
may be the same or different, and at least one π a among two π a is an arylene group.
2. The organic fluorine compound according to claim 1 , wherein the A is a straight chain group.
3. The organic fluorine compound according to claim 1 , wherein a plurality of the R are the same.
4. The organic fluorine compound according to claim 1 , wherein a plurality of the π are the same.
5. The organic fluorine compound according to claim 1 , wherein a plurality of the E are the same.
6. The organic fluorine compound according to claim 1 , wherein a carbon number of the A is 1 to 100.
7. The organic fluorine compound according to claim 1 , wherein the A includes at least one of groups each of which is represented by a general formula
—(CF 2 ) x O— (2)
(where x is an integer of 1 to 5).
8. The organic fluorine compound according to claim 7 , wherein the A includes 1 to 50 groups each of which is represented by the general formula (2) in which the x is 1 or 2.
9. The organic fluorine compound according to claim 1 , wherein an average formula weight of the A is in a range of 250 to 6000.
10. The organic fluorine compound according to claim 1 , wherein the organic fluorine compound is
a compound selected from the group consisting of a compound that is represented by a chemical formula
a compound that is represented by a chemical formula
a compound that is represented by a chemical formula
a compound that is represented by a chemical formula
a compound that is represented by a chemical formula
a compound that is represented by a chemical formula
or a compound that is represented by a chemical formula
said Mn being an approximate average molecular weight, said ca. being circa, and each of said p and q being integers greater than or equal to 1.
11. A lubricant containing the organic fluorine compound according to claim 1 .
12. A processing method of a magnetic recording medium comprising:
applying the lubricant according to claim 11 to the magnetic recording medium; and
irradiating the lubricant applied to the magnetic recording medium with ultraviolet light.