GRAFTING COPOLYMERIZATION OF SERICINE WITH ACRYLIC MONOMER AND PHYSICOCHEMICAL ANALYSIS
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The process of graft copolymerization of sericin protein isolated from natural silk waste with acrylic acid in the presence of
potassium persulfate initiator has been studied. During the reaction, a new copolymer is formed as a result of covalent binding of
polyacrylate segments to the sericin macrochain. The chemical structure of the resulting product was analyzed by IR, 1H PMR and
13C PMR methods. The analysis shows that changes in the spectra of signals and absorption lines characteristic of the functional
groups of the initial sample and the resulting copolymers indicate the formation of copolymers. In particular, the increase in
carboxyl group signals and the appearance of new bonds indicate that polyacrylate monomers are attached to sericin and have new
functional groups
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