The antibacterial activity and mechanism of polyurethane coating with quaternary ammonium salt

被引：21
|
作者：
Wang, Yalan [1 ]
Du, Juan [2 ,3 ]
Guo, Haiyong [4 ]
Liu, Renming [2 ,3 ]
Li, Zhiyi [2 ,5 ]
Yang, Tingyu [2 ,5 ]
Ai, Junzhe [1 ]
Liu, Chunbo [2 ,5 ]
机构：
[1] Yangtze Univ, Coll Chem & Environm Engn, Jingzhou 434023, Peoples R China
[2] Jilin Normal Univ, Key Lab Preparat & Applicat Environm Friendly Mat, Minist Educ, Changchun 130103, Peoples R China
[3] Jilin Normal Univ, Coll Chem, Siping 136000, Peoples R China
[4] Jilin Normal Univ, Sch Life Sci, Siping 136000, Peoples R China
[5] Jilin Normal Univ, Coll Environm Sci & Engn, Siping 13600, Peoples R China
来源：
JOURNAL OF POLYMER RESEARCH | 2022年 / 29卷 / 02期
关键词：
Antibacterial coating; Quaternary ammonium salt; Polyurethane; Antibacterial mechanism; BACTERIA; NANOPARTICLES; COMPOSITE; CHITOSAN; POLYMERS; SURFACES;
D O I：
10.1007/s10965-022-02904-y
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
An antibacterial PU coating with QAS was developed from polycarbonate diol (PCDL), 4,4'-Diphenylmethane diisocyanate (MDI), 3-dimethylamino-1,2-propanediol (DMAPD) and 1-bromododecane. The structural composition and surface morphology of this PU coating were characterized by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). Besides, the QAS-bearing PU showed markedly antimicrobial activity against both gram-positive Staphylococcus aureus (S. aureus) and gram-negative Escherichia coli (E. coli). The samples were marked as PU-2, PU-3, PU-4, PU-5, PU-6 and PU-7 according to the different theoretical molar fraction of DMAPD in chain extenders, which were 20, 30, 40, 50, 60 and 70%, respectively. Apparently, PU-4 coating showed the best antibacterial activity against S. aureus, whereas PU-5 against E. coli.
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页数：13
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