Surface-modifying agent and article using same

A surface-modifying agent comprising:

• a triazine skeleton;
• a (meth)acrylate group bonded to the triazine skeleton via an urethane bond;
• and
• a perfluoropolyether chain bonded to the triazine skeleton, wherein
• the surface-modifying agent is represented by formula (1) or (2) shown below,
• where, in the formulae (1) and (2):
• —X— represents —O—, —N(R1)—, or —O—CH2CH2—O—, wherein R1 represents hydrogen or an alkyl group;
• —Y— represents a perfluoropolyether chain selected from the group consisting of —(OCF2)n—O—(CF2CF2O)m—, —O—(CF2CF2O)p—, —O—(CF2CF2CF2O)q—, and —O—(CF(CF3)CF2C)r—, wherein m, n, p, q, and r each represent a positive integer, 0.8<m/n<3 is satisfied, and units composing —Y— may be bonded to one another in any order;
• R and R′ may represent the same or different structures each indicated by hydrogen, an alkyl group having a carbon number of 1-8, or —R2—O—CO—NH—R3, with at least one of R and R′ being a structure indicated by —R2—O—CO—NH—R3, wherein R2 represents an alkylene group having a carbon number of 2-8 and having a chain, branched, or ring shape, and R3 represents —CH2CH2—OCO—CH═CH2, —CH2CH2—OCO—C(CH3)═CH2, or —C(CH3)—(CH2—OCO—CH═CH2)2;
• and
• Z— represents CF3—, CF3—CF2—O—, CF3—CF2—CF2—, or CF3—CF(CF3)—O—.