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  • Title: Application of Gemini quaternary ammonium with ester groups in cationic P(St-co-BA) nanolatex and study on its antibacterial properties.
    Author: Xu Y, Gao H, Shen Y, Chai S, Zhang J, Zou Q.
    Journal: Mater Sci Eng C Mater Biol Appl; 2017 Nov 01; 80():417-424. PubMed ID: 28866183.
    Abstract:
    Novel Gemini quaternary ammonium salts (GQASs) with ester groups were synthesized. Cationic poly(styrene-co-butyl acrylate) (P(St-co-BA)) nanolatex was synthesized in the presence of GQASs as emulsifier. The structures of GQASs were characterized with Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy; the property of P(St-co-BA) nanolatex was characterized with dynamic light scattering. The results indicated that GQASs and P(St-co-BA) nanolatex with GQASs were successfully synthesized. GQASs, nanolatex, and the polymer films exhibited excellent antibacterial activities against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. The GQASs performed even better than the corresponding single-stranded quaternary ammoniums. The antibacterial mechanism was also preliminarily studied, and longer, softer hydrophobic chains of GQAS had stronger antibacterial activity. The work provided a novel, simple approach for developing high-efficiency antibacterial polymer material with a low cost, which has broad biomaterial applications.
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