Novel Refreshable N-Halamine Polymeric Biocides: N-Chlorination of Aromatic Polyamides

摘要: Chlorination of poly(m-phenyleneisophthalamide) (Nomex) and poly(p-phenyleneterephthalamide) (Kevlar) fabrics by sodium hypochlorite aqueous solution was investigated. Results indicated that stable N-halamine structures could be readily formed in Nomex, which provided potent, durable, refreshable antibacterial functions against both Gram-negative Gram-positive bacteria. However, similar chlorination treatment Kevlar led to serious hydrolysis the polymer. The treated were fully characterized Fourier trasnform infrared, thermal, X-ray diffraction studies. Possible mechanisms this effect discussed.