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首页> 外文期刊>Journal of industrial and engineering chemistry >High-speed continuous production of polymeric nanoparticles with improved stability using a self-aligned coaxial turbulent jet mixer
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High-speed continuous production of polymeric nanoparticles with improved stability using a self-aligned coaxial turbulent jet mixer

机译：高速连续生产聚合物纳米颗粒，使用自排列的同轴湍流喷射混合器具有改善的稳定性

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摘要

Continuous synthesis of polymeric nanoparticles (NPs) has been intensively studied due to its great potential to produce NPs with the physicochemical properties of reproducibility and controllability. Here, we developed a self-aligned coaxial turbulent jet mixer for high-speed continuous synthesis of polymeric NPs. The coaxial turbulent jet mixer can be constructed using commercial tube fittings and tubes. Since those fluidic components are self-aligned coaxially, leak-free jet mixers can be assembled without the use of tools or specialized skills in robust manner. Using the jet mixer with polystyrene (PS) solution, uniform polymeric NPs can be synthesized in a fully continuous manner, for which diaphragm pumps and pulsation dampers are used for continuous control of the flow. We also improved the dispersion stability of the PS NPs in aqueous solution against centrifugation by introducing polystyrene-poly (ethylene oxide) diblock copolymer (PS-b-PEO) as steric stabilizer. The NPs prepared using the coaxial turbulent jet mixer were smaller and more uniform in size compared to NPs synthesized by a bulk nanoprecipitation method.
机译：连续合成聚合物纳米颗粒（NPs）因其具有可重复性和可控性的物理化学性质而被广泛研究。在这里，我们开发了一种用于高速连续合成聚合物纳米颗粒的自对准同轴湍流喷射混合器。同轴紊流射流混合器可以使用商用管件和管子制造。由于这些射流组件是同轴自对准的，因此无泄漏射流混合器可以在不使用工具或专业技能的情况下以稳健的方式组装。使用带有聚苯乙烯（PS）溶液的喷射混合器，可以以完全连续的方式合成均匀的聚合物NPs，其中隔膜泵和脉动阻尼器用于连续控制流量。我们还通过引入聚苯乙烯-聚氧乙烯二嵌段共聚物（PS-b-PEO）作为空间稳定剂，提高了PS-NP在水溶液中的分散稳定性，以防离心。与本体纳米沉淀法合成的纳米颗粒相比，使用同轴湍流喷射混合器制备的纳米颗粒更小，尺寸更均匀。

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