Sulfonamide-Derived Polymer Grafting onto Polypropylene Nonwoven Fabrics for Antibacterial Applications
발표자
전민욱 (서울대학교)
연구책임자
안철희 (서울대학교)
공동저자
전민욱 (서울대학교), 박현재 (서울대학교), 김무송 (효성), 안철희 (서울대학교)
초록
내용
Polypropylene (PP) nonwoven fabrics are widely used in medical and hygiene applications, but conventional nanoparticle-based antibacterial treatments suffer from detachment and leaching. To overcome these limitations, a covalent grafting strategy was employed. Sulfonamide-based antibacterial monomers were designed based on structure–activity relationship principles and grafted onto PP nonwoven fabrics via a Norrish type II photoinitiated reaction under mild UV irradiation. An acryloyl-functionalized sulfonamide monomer was synthesized and polymerized with a 93% monomer conversion confirmed by ¹H NMR. Both the monomer and polymer achieved a 99.9% reduction of E. coli in ASTM tests. The antibacterial polymer was covalently grafted onto PP nonwoven fabrics, as confirmed by FT-IR, water contact angle measurements, and mass increase. The modified PP nonwoven fabrics exhibited effective antibacterial performance in JIS tests, demonstrating a durable antibacterial strategy.