Abhesive coatings

A composition, comprising a polymerization product of:

• (A) one or more of (A-1), (A-2), or a combination of (A-1) and (A-2),
• wherein (A-1) is a mixture, comprising:
• a fluorous oxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0;
• a polydispersity index, PDIO Mw/Mn, of 1.0-2.0;
• and
• a percent purity of 90%-100%,
• wherein (A-2) is a copolyoxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0;
• and
• wherein y is an integer of 0-11, and x is an integer>0;
• and
• (B) a diisocyanate and one or more amines having the formula:
• wherein RD is —CH3, —CH2CH3, —CH2CH2CH3, —CH2CH2CH2CH3;
• and q is an integer of 1-10;
• and
• (C) optionally, a diol or diamine chain extender.

A composition for coating, comprising a compound having the formula:

• and optionally a solvent;
• wherein —O—RA—O— is derived from a fluorous oxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0;
• or a copolyoxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0;
• and
• wherein y is an integer of 0-11, and x is an integer>0;
• wherein —(C═O)NH—RB—NH(C═O)— is derived from methylene dicyclohexyl diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, toluene diisocyanate, xylylene diisocyanate, cyclohexane diisocyanate, tetramethyl xylylene diisocyanate, trimethylhexamethylene diisocyanate, norbornane diisocyanate, phenylene diisocyanate, or a combination of two or more thereof;
• wherein Rc is a C1-10 alkylene;
• and
• wherein RD is —CH3, —CH2CH3, —CH2CH2CH3, —CH2CH2CH2CH3.

A coating, comprising a compound having the formula:

• in contact with a surface;
• wherein —O—RA—O— is derived from a fluorous oxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0;
• or a copolyoxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0;
• and
• wherein y is an integer of 0-11, and x is an integer>0;
• wherein —(C═O)NH—RB—NH(C═O)— is derived from methylene dicyclohexyl diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, toluene diisocyanate, xylylene diisocyanate, cyclohexane diisocyanate, tetramethyl xylylene diisocyanate, trimethylhexamethylene diisocyanate, norbornane diisocyanate, phenylene diisocyanate, or a combination of two or more thereof;
• wherein Rc is a C1-10 alkylene;
• and
• wherein each Z is independently SiO1.5 or H.

A composition, comprising a polymerization product of:

• first and second compositions, wherein the first composition comprises a polymerization product of:
• (A) one or more of (A-1), (A-2), or a combination of (A-1) and (A-2),
• wherein (A-1) is a mixture, comprising:
• a fluorous oxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0;
• a polydispersity index, PDIO Mw/Mn, of 1.0-2.0;
• and
• a percent purity of 90%-100%,
• wherein (A-2) is a copolyoxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0;
• and
• wherein y is an integer of 0-11, and x is an integer>0;
• (B) one or more of an isocyanate, diisocyanate, or combination thereof;
• and
• (C) optionally, a diol or diamine chain extender;
• and wherein the second composition comprises
• one or more bis(trialkoxysilyl)alkanes having the formula:
• wherein RD is —CH3, —CH2CH3, —CH2CH2CH3, —CH2CH2CH2CH3;
• and
• wherein r is an integer of 1-10.

A monolithic, self-stratifying polymer coating, comprising:

• inner and outermost surfaces on opposite sides of the coating, the inner surface being in contact with and adhered to an article;
• a surface region, extending from the outermost surface to a depth of about 2 nm from the outermost surface;
• a middle region, extending from a depth of about 2 nm from the outermost surface to a depth of less than about 2000 nm from the outermost surface;
• and
• a bulk region, extending from a depth of less than about 2000 nm from the outermost surface to the inner surface;
• wherein the surface region comprises a fluorous polyoxetane having the formula:
• wherein n is an integer of 0-11, and m is an integer>0, in a greater concentration relative to the middle and bulk regions;
• wherein the middle region comprises —SiO1.5 in a greater concentration relative to the surface and bulk regions;
• and wherein the bulk region comprises a polyurethane in a greater concentration relative to the surface and middle regions.