Reversible adhesive compositions, related articles, and related methods

An article comprising:

• a first surface;
• a second surface different from the first surface;
• and
• a reversible adhesive composition in contact with and bonded to the first surface and the second surface at an interface of the article, wherein the reversible adhesive composition comprises a copolymer comprising:
• a vinyl spacer monomer unit comprising at least one of (i) a pendant carboxylate group with a carbonyl carbon backbone attachment and in the form of an acid, a salt, an ester with 1 to 3 carbon atoms in a corresponding ester group, and combinations thereof, (ii) a pendant carboxylate group with an ester oxygen backbone attachment and having a hydrocarbon tail group with 1 to 3 carbon atoms, (iii) a pendant ether group with an ether oxygen backbone attachment and having a hydrocarbon tail group with 1 to 3 carbon atoms;
• and
• a vinyl reversible binder monomer unit comprising at least one of (i) a pendant carboxylate group with a carbonyl carbon backbone attachment and in the form of an ester having 3 to 20 carbon atoms in a corresponding ester group, (ii) a pendant carboxylate group with an ester oxygen backbone attachment and having a hydrocarbon tail group with 3 to 20 carbon atoms, and (iii) a pendant ether group with an ether oxygen backbone attachment and having a hydrocarbon tail group with 3 to 20 carbon atoms;
• wherein the vinyl spacer monomer unit and the vinyl reversible binder monomer unit are different.