Peculiarities of Formation of 3D Structures for Regenerative Medicine Based on Collagen, Pectin, and Acrylic Monomers in the Presence of a Triethylboron Complex with Hexamethylenediamine

Cross-linked graft copolymers containing collagen, pectin, and a synthetic polymer—polymethyl methacrylate or polyacrylamide—in the presence of a triethylboron complex with hexamethylenediamine in an acetic acid dispersion at 60°C were synthesized. The proportion of the synthetic fragment in the copolymer and its molecular weight characteristics depend on the monomer structure, concentration of the initiator and monomer. The results are of great importance for the development of methods for obtaining 3D structures for regenerative medicine based on collagen, pectin, and acrylic monomers.