Adhesive compositions and articles

An adhesive composition comprising a first polymer and a second polymer, wherein

• the first polymer is derived from a first polymerizable composition comprising
• 1) an alkyl (meth)acrylate;
• and
• 2) an optional polar monomer;
• and
• the second polymer is derived from a second polymerizable composition comprising
• 1) a polyether (meth)acrylamide macromer having a polyether group comprising at least 50 mole percent propylene oxide based on total moles of alkylene oxide in the polyether group;
• 2) an alkyl (meth)acrylate;
• 3) an optional polar monomer;
• and
• 4) a crosslinking agent.

A method of making an adhesive composition, the method comprising:

• a) providing a first polymerizable composition comprising:
• 1) an alkyl (meth)acrylate;
• and
• 2) an optional polar monomer;
• b) forming a syrup composition by partially polymerizing the first polymerizable composition, wherein the syrup composition comprises
• 1) 1 to 20 weight percent of solute polymer based on a total weight of the syrup composition, the solute polymer being a first polymer having a weight average molecular weight of at least 100,000 Daltons;
• 2) 80 to 99 weight percent of solvent monomers based on a total weight of the syrup, the solvent monomers comprising
• i) the alkyl (meth)acrylate;
• and
• ii) the optional polar monomer;
• and
• c) preparing a second polymerizable composition comprising
• 1) the syrup composition;
• 2) a polar monomer if the syrup composition is free of the optional polar monomer or more polar monomer is desired;
• 3) a polyether (meth)acrylamide macromer having a polyether group comprising at least 50 mole percent propylene oxide based on total moles of alkylene oxide in the polyether group;
• and
• 4) a crosslinking agent;
• d) polymerizing the second polymerizable composition to form the adhesive composition comprising
• 1) the first polymer;
• and
• 2) a second polymer,
• wherein the second polymer or both the second polymer and the first polymer are crosslinked.