Substrate including a surface coated with an epilame agent and method for coating such a substrate with epilame

A substrate comprising a surface at least one part of which is coated with an epilame agent, wherein said epilame agent comprises at least one compound in the form of a copolymer comprising V units, N units, optionally at least one M unit and optionally at least one P unit, linked by covalent bonds by their main chains, wherein

• V is
• N is
• M is
• P is
• where R1, R2, R3, R4, which may be identical or different, are H, a C1-C10 alkyl group, C1-C10 alkenyl group
• W, X, Y, Z, which may be identical or different, are spacer arms formed of a heteroatom or of a hydrocarbon chain that may contain at least one linear or branched heteroatom comprising at least one carbon atom
• T, which may be identical or different, is a tracer group arranged to determine the concentration of epilame agent in an epilame-coating bath
• L, which may be identical or different, is a halogenated C1-C20 carbon moiety
• A, which may be identical or different, forms an anchoring moiety for the substrate, and is chosen from the group consisting of thiols, thioethers, thioesters, sulphides, thioamides, silanols, alkoxysilanes, silane halides, hydroxyls, phosphates, protected or non-protected phosphonic acids, protected or non-protected phosphonates, amines, ammoniums, nitrogenated heterocycles, carboxylic acids, anhydrides, and catechol
• Q, which may be identical or different, is H, CH3, a hydrocarbon chain different from T that may contain at least one linear or branched, saturated or unsaturated heteroatom, comprising at least 2 carbon atoms.

A use, as epilame agent for at least part of a surface of a substrate, of a copolymer comprising V units, N units, optionally at least one M unit and optionally at least one P unit, linked by covalent bonds by their main chains, wherein

• V is
• N is
• M is
• P is
• where R1, R2, R3, R4, which may be identical or different, are H, a C1-C10 alkyl group, C1-C10 alkenyl group
• W, X, Y, Z, which may be identical or different, are spacer arms formed of a heteroatom or of a hydrocarbon chain that may contain at least one linear or branched heteroatom comprising at least one carbon atom
• T, which may be identical or different, is a tracer group arranged to determine the concentration of epilame agent in an epilame-coating bath
• L, which may be identical or different, is a halogenated C1-C20 carbon moiety
• A, which may be identical or different, forms an anchoring moiety for the substrate, and is chosen from the group comprising thiols, thioethers, thioesters, sulphides, thioamides, silanols, alkoxysilanes, silane halides, hydroxyls, phosphates, protected or non-protected phosphonic acids, protected or non-protected phosphonates, amines, ammoniums, nitrogenated heterocycles, carboxylic acids, anhydrides, catechol
• Q, which may be identical or different, is H, CH3, a hydrocarbon chain different from T, which may contain at least one linear or branched, saturated or unsaturated heteroatom, comprising at least 2 carbon atoms,
• to monitor the concentration of epilame agent in an epilame-coating bath.