Preparation, surface properties, and antibacterial activity of a poly(dimethyl siloxane) network containing a quaternary ammonium salt side chain
Preparation, surface properties, and antibacterial activity of a poly(dimethyl siloxane) network containing a quaternary ammonium salt side chain
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季铵盐侧链聚二甲基硅氧烷网络的制备、表面性能及抗菌活性
DOI：
10.1002/app.41725
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发表时间：
2015-04
影响因子：
3
通讯作者：
Chen, Fengqiu
中科院分区：
文献类型：
--
作者：
Liu, Hailong;Chen, Xi;Zhan, Xiaoli;Chen, Fengqiu
为获得具有低表面能和抗菌性能的共聚物网络，采用水解缩聚和季铵盐侧链改性的方法合成了一系列端羟基聚二甲基硅氧烷（pdms）。中间产物和最终产物的结构通过傅里叶变换红外光谱、1H-NMR和凝胶渗透色谱进行了表征。结果表明，每一步都进行得很成功，得到了客观的产物。将改性后的PDMS与商用多异氰酸酯交联，得到固化的qas改性PDMS涂料。目标功能涂层具有较低的表面能，抗菌性能优异。当PDMS中QAS的摩尔含量在10% ~ 30%之间变化时，涂层的临界表面能保持在24.05 ~ 26.88 mN/m之间；这表明，根据拜尔曲线，涂层与污垢的附着力最小。抑菌活性与PDMS分子量无关，而与PDMS中QAS含量密切相关。当PDMS中QAS的摩尔含量大于20%时，涂层对大肠杆菌和金黄色葡萄球菌的杀菌率均大于97%。©2014 Wiley期刊公司j:。变异较大。自然科学学报，2015,32(4):41725。
To obtain a copolymer network with low surface energy and antibacterial properties, a series of hydroxyl-terminated poly(dimethyl siloxane)s (PDMSs) modified by a quaternary ammonium salt (QAS) side chain was synthesized via hydrolytic polycondensation and quaternization. The structures of the intermediate and final products were confirmed by Fourier transform infrared spectroscopy, 1H-NMR, and gel permeation chromatography. The results show that each step was successfully carried out, and objective products were obtained. The modified PDMSs were crosslinked with a commercial polyisocyanate to obtain cured QAS-modified PDMS coatings. The target functional coatings exhibited excellent antibacterial performance with a low surface energy. When the molar content of QAS in PDMS was varied from 10 to 30%, the critical surface energy of the coatings remained in the range 24.05–26.88 mN/m; this indicated that the coatings had minimal adhesion with fouling according to the Baier curve. The bactericidal tests showed that the antibacterial activity was independent of the PDMS molecular weight but was closely correlated with the QAS content in PDMS. The bactericidal rate of the coatings to Escherichia coli and Staphylococcus aureus was higher than 97% when the molar content of QAS in PDMS was above 20%. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41725.
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影响因子：
5.1
作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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DOI：
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发表时间：
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影响因子：
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作者：
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通讯作者：
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DOI：
10.1007/s10856-013-4951-0
发表时间：
2013-08-01
影响因子：
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作者：
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通讯作者：
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