Amphiphilic block copolymer and coating arrangement

An amphiphilic block copolymer comprising:

• a first block consisting of a polymeric hydrophilic domain, wherein the polymeric hydrophilic domain consists of a polyglycerol,
• an optional second block consisting of a hydrophobic domain and a first linker domain, wherein the second block is covalently bound to the first block via the first linker domain, wherein the hydrophobic domain is chosen from the group consisting of aromatic residues having 3 to 20 carbon atoms, aliphatic residues having 3 to 20 carbon atoms, oligo(dimethylsiloxane), and poly(dimethylsiloxane),
• an optional third block consisting of a catechol domain and a second linker domain, wherein the third block is covalently bound to the first block via the second linker domain, wherein the catechol domain comprises at least one catechol residue, and
• a fourth block consisting of a crosslinking domain and a third linker domain, wherein the fourth block is covalently bound to the first block via the third linker domain, wherein the crosslinking domain comprises a reactive residue enabling a crosslinking between individual molecules of the amphiphilic block copolymer, wherein the reactive residue is at least one residue chosen from the group consisting of amines, thiols, allyls, vinyls, azides, alkynes, carboxyls, anhydrides, aldehydes, and benzophenone,
• wherein the second block and the third block are only optional if the reactive residue of the fourth block is a benzophenone.