乳状液
化学工程
聚合物
聚合
材料科学
甲基丙烯酸甲酯
悬浮聚合
单体
乙二醇二甲基丙烯酸酯
乳液聚合
有孔小珠
高分子化学
复合材料
工程类
甲基丙烯酸
作者
Juan Carlos Ferrer,Qixiang Jiang,Angelika Menner,Alexander Bismarckdesign
标识
DOI:10.1016/j.jcis.2022.02.053
摘要
A tubular co-flow reactor to produce macroporous polymer beads by polymerization of medium and high internal phase emulsion (M/HIPE) templates was developed. This reactor allows for improved production rates compared to tubing based microfluidic devices. Water-in-oil (W/O) M/HIPEs, containing methyl methacrylate (MMA) and ethylene glycol dimethacrylate (EGDMA) monomers in the continuous phase, were injected into a re-circulating carrier phase. The continuous phase of the emulsion droplets was UV polymerized in situ, resulting in polyM/HIPE beads. The emulsion composition was adjusted to produce poly(MMA-co-EGDMA) porous polymer beads with a protective crust and an interconnected internal pore structure. HCl loaded beads were produced by adding the active ingredient into the dispersed emulsion phase, leading to HCl encapsulation in the porous structure of the beads after polymerization. Even after exposure to ambient conditions for 24 h, 60% of the HCl remained in the beads, indicating good encapsulation efficiencies. Thus, it is possible to use such macroporous beads as delivery vehicles.
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