| abstract |
The present invention provides a fluoropolyether group-containing polymer capable of forming a cured film excellent in water repellency and abrasion resistance, and a surface treatment agent comprising the polymer and/or a partial (hydrolyzed) condensate thereof, and An article that has been surface treated with the treating agent. A fluoropolyether group-containing polymer of the following formula. (Rf 1 is a monovalent or divalent polymer residue containing a fluorooxyalkylene group, N is an organic group having a valence of 3 to 8, and V is a group having a valence of a hydroxyl group or a hydrolyzable group, and E is having a group having a valence of a hydroxyalkylene group and a hydroxyl group or a hydrolyzable group, α is 1 or 2, β and γ are 1 to 6, and β + γ is 2 to 7. Q is a single bond or a divalent organic group, G Is a divalent group having a hydroxyl group or a hydrolyzable group, and E' is a divalent group having an oxyalkylene group and a hydroxyl group or a hydrolyzable group. B is H, an alkyl group or a halogen atom, and δ is 1 to 10, ε is 1~10). |