Patent ID: 11884757
Assignee: PURDUE RESEARCH FOUNDATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 15:
16. An adhesive composition comprising multiple chains of a copolymer including a first co-monomer selected from one of dopamine methacrylamide, 3,4-dihydroxyphenylalanine or 3,4-dihydroxystyrene and present in a proportion of about 20 mol % to about 40 mol %, and a second co-monomer comprising a pendant first functional group and present in a proportion of about 60 mol % to about 80 mol %;
wherein at least two of the first functional groups of different copolymer chains are interlinked non-covalently via:
a neutral hydrogen bond formed between the first functional groups of the interlinked first and second copolymer chain, wherein in the neutral hydrogen bond(s) the following relationship is met: ΔpKa=pKa (DH)−pKa (AH+)>0, wherein pKa (DH) is the pKa value of a hydrogen bond donor and pKa (AH+) is the pKa value of a hydrogen bond acceptor;
a first additive comprising second and third functional groups, each of which form neutral hydrogen bonds with said first functional groups of different copolymer chains; or
a second additive, which is a metal ion, to which said first functional groups of different copolymer chains are bound through a ligand-metal-ligand bond, the first functional groups forming the ligands.