Ren Xuehong, Kou Lei, Kocer Hasan B, Worley S D, Broughton R M, Tzou Y M, Huang T S
Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849.
Department of Polymer and Fiber Engineering, Auburn University, Auburn, Alabama 36849.
J Biomed Mater Res B Appl Biomater. 2009 May;89(2):475-480. doi: 10.1002/jbm.b.31237.
The N-halamine monomer 3-(4'-vinylbenzyl)-5,5-dimethylhydantoin (VBDMH) was synthesized and employed to form thin films on the surfaces of polyester fibers by surface polymerization with the aid of a cationic surfactant. The coated samples were characterized by FTIR and SEM. The thin film coatings could be rendered biocidal by exposure to dilute sodium hypochlorite. The antimicrobial polyesters were challenged with Staphylococcus aureus and Escherichia coli O157:H7. Complete inactivation of S. aureus and E. coli O157:H7 was observed within 10 and 30 min of contact time, respectively. The chlorine bonded to the coatings was very stable under standard washing tests and UVA irradiation tests, and much of the lost chlorine could be regenerated by rechlorination.
合成了N-卤胺单体3-(4'-乙烯基苄基)-5,5-二甲基乙内酰脲(VBDMH)，并借助阳离子表面活性剂通过表面聚合在聚酯纤维表面形成薄膜。通过傅里叶变换红外光谱(FTIR)和扫描电子显微镜(SEM)对涂覆样品进行了表征。薄膜涂层经稀次氯酸钠处理后可具有杀菌性能。用金黄色葡萄球菌和大肠杆菌O157:H7对抗菌聚酯进行了挑战试验。分别在接触10分钟和30分钟内观察到金黄色葡萄球菌和大肠杆菌O157:H7完全失活。在标准洗涤试验和紫外线A辐照试验中，与涂层结合的氯非常稳定，大部分损失的氯可通过再氯化再生。
