RAFT-Mediated Radiation Grafting on Natural Fibers in Aqueous Emulsion

Using aqueous emulsion as the medium in radiation-induced graft polymerization (RIGP) offers an environment-friendly shift from organic solvents while increasing efficiency through known water radiolysis-based initiation. In present paper, we further extend applicability of RIGP under influence reversible addition fragmentation chain transfer (RAFT) mechanisms. Emulsions prepared with Tween 20 showed good colloidal stability for several hours. Subjecting it to simultaneous irradiation abaca fibers resulted successful grafting, supported by gravimetric, IR, SEM, and TG analysis. A correlation was drawn between smaller monomer micelles enhancement grafting driven diffusion surface area coverage. RAFT mechanisms were also conserved based on molecular weight evolution. RAFT-mediated shows potential a versatile green modification technique natural various functional applications.