| 摘要 |
Compounds of formula wherein R<SUB>f </SUB>is a (per)fluoropolyoxyalkylene chain having a number average molecular weight in the range 500-10,000; W<SUB>1</SUB>, W<SUB>2</SUB>, equal to or different from each other, are -F or -CF<SUB>3</SUB>; T<SUB>1 </SUB>is equal to -CHA<SUB>a</SUB>-B<SUB>a </SUB>(CH<SUB>2</SUB>CH<SUB>2</SUB>O)<SUB>na</SUB>- wherein A<SUB>a</SUB>=H, CF<SUB>3</SUB>; B<SUB>a</SUB>=O, S, NH; na=0 or an integer between 1 and 6; T<SUB>2 </SUB>is equal to -F, -CF<SUB>3</SUB>, -C<SUB>2 </SUB>F<SUB>5</SUB>, -(C<SUB>2 </SUB>F<SUB>4</SUB>) Cl, or a group of formula: Q<SUB>1</SUB>, Q<SUB>2 </SUB>equal to or different from each other, are a chain of formula -T<SUB>1-l -CFW</SUB><SUB>1</SUB>-O-R<SUB>f</SUB>-CFW<SUB>2</SUB>-T'<SUB>2</SUB>, wherein: T'<SUB>2 </SUB>is equal to -F, -CF<SUB>3</SUB>, -C<SUB>2 </SUB>F<SUB>5</SUB>, -(C<SUB>2</SUB>F<SUB>4</SUB>) Cl; or is a group of formula: wherein B is equal to O, S, NH; R<SUB>1</SUB>, R<SUB>2</SUB>, R<SUB>3</SUB>, R<SUB>4</SUB>, R<SUB>5 </SUB>equal to or different from each other are selected from H, F, NO<SUB>2</SUB>, CN, C<SUB>1</SUB>-C<SUB>8 </SUB>perfluoroalkyl, carboxyl, phenyl (Ph), O-Ph, NH-Ph, S-Ph; with the proviso that at least one of Q<SUB>1 </SUB>and Q<SUB>2 </SUB>is equal to:
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