| 摘要 |
The present invention relates to a perfluoropolyether-modified polysiloxane represented by general formula (1):
wherein X is a divalent group represented by formula -CH 2 -, -CH 2 O-, -CH 2 OCH 2 - or -Y-NR-CO-,
wherein Y is a divalent group represented by formula -CH 2 - or the following formula:
and R is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group;
R 1 , R 2 , and R 3 are, independently of each other, an alkyl group having 1 to 10 carbon atoms or an aryl group;
X' is a divalent group represented by formula -CH 2 -, -OCH 2 -,
-CH 2 OCH 2 - or -CO-NR-Y'-,
wherein Y'is a divalent group represented by formula -CH 2 - or the following formula:
and R is as defined above;
a is, independently of each other, 0 or 1;
z and z' are, independently of each other, an integer of 5 to 100; and
Rf is a divalent group represented by the following general formula (2) :
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-C t F 2t [OCF 2 CF(CF 3 )] m OCF 2 (CF 2 ) r CF 2 O[CF(CF 3 )CF 2 O] n C t F 2t -€ƒ€ƒ€ƒ€ƒ€ƒ(2)
wherein m and n are an integer of 1 to 150, provided that an average of the total of m and n is 2 to 200;
r is an integer of 0 to 6;
t is 2 or 3; and
C t F 2t is linear or branched;
or by the following general formula (3):
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-C t' F 2t' (OCF 2 CF 2 ) u (OCF 2 ) v OC t' F 2t' -€ƒ€ƒ€ƒ€ƒ€ƒ(3)
wherein u is an integer of 1 to 200;
v is an integer of 1 to 50;
t' is an integer of 1 to 3; and
C t ,F 2t , is linear or branched.
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