Preparation and characterization of antibacterial chitosan-grafted poly(ethylene terephthalate) film

One of the polymers that can be used for making antibacterial surfaces is poly(ethylene terephthalate) (PET). After modification, special functional groups are created on the PETsurface and further other molecules that possess antimicrobial activities such as chitosan can be grafted onto PET [1]. In thisstudy beside exploring the effects of two modification techniques, namely, hydrolysis and carboxylation, the immobilization of two different molecular weight of chitosan to surfaces was analyzed