Polyoxazoline copolymers

A brush copolymer derived from a monomer mixture comprising monomers having the formulas:

• wherein:
• Q is O or N;
• R10 is H or CH3;
• R11 —Z—Si(R13)3;
• R12 is H or CH3;
• each R13 is independently selected from an alkyl group, an aryl group, a combination thereof, and a hydrolyzable group;
• at least one R13 is a hydrolyzable group;
• Z is selected from an alkylene group, an arylene group, and a combination thereof, optionally including —O—, —C(O)—, —NH—, —S—, or a combination thereof, within the chain;
• and
• P is:
• wherein:
• R1 is selected from H, an alkyl group, an aryl group, and combinations thereof;
• R2 is Rf—Y—(CH2)x— group;
• Rf is a perfluorinated (C1-C8)alkyl group;
• Y is a bond, —S(O)2—N(CH3)—, —C(O)—O—, —C(O)—NH—, or —(CH2CH2O)y—;
• n is an integer from 20 to 100;
• x is an integer from 2 to 20;
• and
• y is an integer from 1 to 20.