Scaffold Chemical Model Based on Collagen-Methyl Methacrylate Graft Copolymers.

Polymerization of methyl methacrylate (MMA) in aqueous collagen (Col) dispersion was studied in the presence of tributylborane (TBB) and -quinone: 2,5-di-tert-butyl--benzoquinone (2,5-DTBQ), -benzoquinone (BQ), duroquinone (DQ), and -naphthoquinone (NQ). It was found that this system leads to the formation of a grafted cross-linked copolymer. The inhibitory effect of -quinone determines the amount of unreacted monomer, homopolymer, and percentage of grafted poly(methyl methacrylate) (PMMA).

Grafting of Methyl Methacrylate onto Gelatin Initiated by Tri-Butylborane-2,5-Di-Tert-Butyl--Benzoquinone System.

Graft gelatin and poly(methyl methacrylate) copolymers were synthesized in the presence of the tributylborane-2,5-di-tert-butyl--benzoquinone (2,5-DTBQ) system. The molecular weight parameters and morphology of the polymer indicate that it has a cross-linked structure. Obtained data confirm the simultaneous formation of a copolymer in two ways: "grafting from" and "grafting to".