Zhu, Ming-Ming; Fang, Yu; Chen, Yan-Chen; Lei, Yu-Qing; Fang, Li-Feng; Zhu, Bao-Ku; Matsuyama, Hideto published the artcile< Antifouling and antibacterial behavior of membranes containing quaternary ammonium and zwitterionic polymers>, Quality Control of 1592-20-7, the main research area is antifouling antibacterial membrane; Antibacterial; Antifouling; Membrane; Quaternary ammonium; Zwitterionic polymer.
To overcome the organic-/bio- fouling of the membrane, a dual-functional ultrafiltration membrane containing quaternary ammonium and zwitterionic polymers via quaternization and surface radical polymerization was designed, and its antifouling and antibacterial behavior was studied. In this work, poly(vinylidene fluoride)/poly(Me methacrylate-co-dimethylamino-2-Et methacrylate) (PVDF/P(MMA-co-DMAEMA)) blend membrane was quaternized by p-chloromethyl styrene (p-CMS), and the double bonds were introduced onto the membrane surface, which further participated in the polymerization of zwitterionic monomers on the membrane surface. The results indicated that the resultant membrane exhibited obviously improved hydrophilicity and weak pos. charge (isoelec. point, 7.49). The membrane presented higher flux recovery ratio and lower protein adhesion compared with the pure PVDF membrane. Meanwhile, the membrane showed high-efficiency broad-spectrum antibacterial performance, i.e., the bacteria killing efficiency of S. aureus and E. coli reached 98.2% and 97.0%, resp. Moreover, the membrane effectively inhibited bacterial adhesion, which is important for the long-term antibacterial properties of membrane. This antifouling and antibacterial PVDF membrane may have potential in the long-term filtration process, especially when dealing with microbiol. contaminated water.
Journal of Colloid and Interface Science published new progress about Antibacterial agents. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Quality Control of 1592-20-7.
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