Stable poly(St-co-BA) nanoemulsion polymerization for high performance antibacterial coatings in the presence of dioctyldimethylammonium chloride

Zhao, Chen; Sun, Xiaowen; Shen, Yan; Hóng, Ní; Chai, Shugen; Zou, Qichao; Zhang, Xun; Zhang, Jinzhi

doi:10.1016/j.msec.2014.12.085

Cited by 8 publications

(2 citation statements)

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“…As a result, only low monomer concentrations can be used, along with high biocide concentrations. 13−15 The incorporation of quaternary ammonium comonomers in coating resins, such as in polyacrylates and polyurethanes, has been described often, giving biocidal and emulsifying properties. 16−20 However, in these cases the coating properties will be influenced as well because the cationic moieties are randomly distributed throughout the whole coating resin.…”

Section: Introductionmentioning

confidence: 99%

“…Low-molecular-weight cationic surfactants, such as cetyltrimethylammonium chloride, are well-known potent biocides but have poor emulsifying properties. As a result, only low monomer concentrations can be used, along with high biocide concentrations. − The incorporation of quaternary ammonium comonomers in coating resins, such as in polyacrylates and polyurethanes, has been described often, giving biocidal and emulsifying properties. − However, in these cases the coating properties will be influenced as well because the cationic moieties are randomly distributed throughout the whole coating resin. In contrast, only a very few attempts have been reported for preparing antibacterial polymeric emulsifiers that will be located only at the periphery of the paint droplets, without influencing the coating properties.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Evaluation of Antimicrobial Hyperbranched Emulsifiers for Waterborne Coatings

et al. 2019

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Nosocomial infections are a major problem in medical health care. To solve this problem, a series of antimicrobial waterborne paints were prepared by using antimicrobial hyperbranched (HB) emulsifiers. The HB-emulsifiers were prepared by polymerizing AB2 monomers obtained in a one-step reaction of bis(hexamethylene)triamine and carbonyl biscaprolactam. The blocked isocyanate end groups (B groups) of the HB-polymer were utilized to introduce tertiary amino groups through the reaction with compounds comprising either a hydroxyl or a primary amino group and a tertiary amino group. Quaternization of the tertiary amines with 6 different alkyl bromides resulted in 12 amphiphilic cationic species. The 12 emulsifiers showed the successful inhibition and killing of 8 bacterial and 2 fungal strains. The killing efficacy increased with increasing alkyl chain length. The octyl-functionalized compound was chosen for suspension polymerizations because of the good compromise between killing and emulsifying properties. With this emulsifier, aqueous poly(methacrylate) suspensions were prepared, which were stable and had excellent killing properties.

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