[3PS-216]
Surface Functionalization of PET with Sulfonamide Monomers through UV-Induced Grafting for Antimicrobial Efficacy
발표자박수빈 (서울대학교)
연구책임자안철희 (서울대학교)
Abstract
Polyethylene terephthalate (PET) is widely used in packaging, textiles, and medical devices. To address concerns about disease transmission, we developed an antimicrobial PET by covalently bonding sulfonamide-based compounds onto its surface. Unlike traditional PET modified with physically blended metals, which suffer from poor washing durability, our method ensures strong interfacial stability. Sulfonamide-derived monomers were synthesized in a single step and grafted onto PET using a photo-induced process. First, tertiary amines were introduced onto PET via aminolysis to act as type II photoinitiators. UV irradiation with benzophenone then enabled grafting of the monomers. FT-IR confirmed sulfonamide incorporation, and the resulting homopolymer showed 99% antibacterial activity.