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首页> 外文期刊>Journal of Applied Polymer Science >Novel hydrophilic N-halamine polymer with enhanced antibacterial activity synthesized by inverse emulsion polymerization
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Novel hydrophilic N-halamine polymer with enhanced antibacterial activity synthesized by inverse emulsion polymerization

机译：具有逆乳液聚合合成的具有增强的抗菌活性的新型亲水性N-卤素聚合物

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摘要

N-halamine-based antibacterial agents have high efficiency and rechargeable antibacterial properties. However, their applications are limited due to their complex synthetic process and fuzzy antibacterial mechanism. In this study, a novel N-halamine antibacterial polymer was synthesized by inverse emulsion polymerization and characterized by Fourier transform infrared, nuclear magnetic resonance, scanning electron microscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy. Due to the difficulty of purification, most of the subjects studied previously were hydrophobic polymers, while little research on hydrophilic polymers. In this experiment, this difficulty was overcome by controlling the dosage of sodium hypochlorite and methods of dialysis. Because of the complex cell structure of Gram-negative bacteria, it is difficult for N-halamines to release the oxidizing chlorine into the cell. However, the hydrophilic N-halamines can solve this problem, which showed a stronger antibacterial effect on Gram-negative Escherichia coli synthesized in this study. In addition, the particle size and hydrophilic property of the polymer were changed by changing the amount of initiator, and the differences in their antibacterial properties were studied. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47419.
机译：基于N-卤素的抗菌剂具有高效率和可充电的抗菌性能。然而，由于其复杂的合成过程和模糊抗菌机制，它们的应用受到限制。在该研究中，通过逆乳液聚合合成新的N-卤素抗菌聚合物，其特征在于傅里叶变换红外，核磁共振，扫描电子显微镜，热重分析和X射线光电子能谱。由于纯化的难度，研究以前研究的大多数受试者是疏水性聚合物，而亲水聚合物的研究很少。在该实验中，通过控制次氯酸钠和透析方法的剂量来克服这种困难。由于革兰氏阴性细菌的复杂细胞结构，N-卤素难以将氧化氯释放到细胞中。然而，亲水性N-卤素可以解决该问题，这表明对本研究合成的革兰氏阴性大肠杆菌具有更强的抗菌作用。此外，通过改变引发剂的量改变聚合物的粒度和亲水性，并研究了它们的抗菌性能的差异。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47419。

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