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Emulsion templated hydrophilic polymethacrylates. Morphological features, water and dye absorption
Reactive & Functional Polymers ( IF 5.1 ) Pub Date : 2020-01-31 , DOI: 10.1016/j.reactfunctpolym.2020.104515
Doris Golub , Peter Krajnc

Emulsions with high volume fraction of droplet phase were used to prepare macroporous polymers (polyHIPEs) of dimethylaminoethyl methacrylate (DMAEMA) and 2-hydroxyethyl methacrylate (HEMA) crosslinked with various amounts of ethylene glycol dimethacrylate (EGDMA) and N,N′-methylene bisacrylamide (MBAA), respectively. Monoliths with cellular interconnected porous structure were obtained. Up to 6 times of water (weight/weight) was absorbed by the materials while no apparent change in volume was found suggesting that the main mechanism of water absorption was primary pore filling. Prepared materials were used for the removal of dyes methylene blue (MB) and methyl orange (MO) from their aqueous solutions; in 120 min 6.5 mg g−1 of MB and 1.6 mg g−1 of MO were removed.



中文翻译:

乳液模板亲水性聚甲基丙烯酸酯。形态特征,水和染料吸收

使用具有高体积分数液滴相的乳液来制备甲基丙烯酸二甲基氨基乙基酯(DMAEMA)和甲基丙烯酸2-羟乙基酯(HEMA)的大孔聚合物(polyHIPEs),这些聚合物与各种数量的乙二醇二甲基丙烯酸酯(EGDMA)和N,N'-亚甲基双丙烯酰胺交联(MBAA)。获得具有蜂窝状互连多孔结构的整体。材料吸收了多达6倍的水(重量/重量),而体积没有明显变化,这表明吸水的主要机理是主要的孔填充。所制备的材料用于从其水溶液中去除染料亚甲基蓝(MB)和甲基橙(MO)。在120分钟内6.5 mg g -1 MB和1.6 mg g -1 的MO已删除。

更新日期:2020-01-31
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