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A high-efficacy and regenerable antimicrobial resin containing quaternarized N-halamine groups

Zhiqiang Jie,Xiufang Yan,Lianhong Zhao,S.D. Worley,Jie Liang

A novel macroporous cross-linked antimicrobial resin containing quaternarized N-halamine groups, poly(1-chloro-5,5-dimethylhydantoinyl-3-ethyl-p-ethenylphenylmethyl dimethylammonium chloride) (Cl-PSQH), has been synthesized by a facile three-step reaction. The as-prepared resins were characterized by FT-IR, X-ray photoelectron spectroscopy, and zeta-potential measurement. Antimicrobial tests showed that Cl-PSQH was capable of about a 7-log inactivation of Staphylococcus aureus and Escherichia coli O157:H7 within 1   min of contact. Also, its regenerability and preliminary storage stability were investigated.