Preparation of ionic liquid-encapsulated polymer particles
Preparation of ionic liquid-encapsulated polymer particles
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DOI：
10.1007/s00396-012-2691-1
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发表时间：
2012
影响因子：
2.4
通讯作者：
H. Minami;Hiroki Fukaumi;M. Okubo;Toyoko Suzuki
中科院分区：
文献类型：
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作者：
H. Minami;Hiroki Fukaumi;M. Okubo;Toyoko Suzuki
采用相分离聚合物自组装方法，通过二甲基丙烯酸乙二醇酯（EGDM）的微悬浮聚合，对离子液体1-己基-3-甲基咪唑鎓双（三氟甲磺酰）酰胺（[Hmim][TFSA]）进行包封，用于制备中空聚合物颗粒。经过聚合条件优化，成功制备出具有光滑表面形貌和单一中空结构的离子液体包覆聚合物颗粒。通过将壳聚合物从聚 EGDM 均聚物更改为聚（EGDM-甲基丙烯酸丁酯）（50/50，w/w）共聚物，[Hmim][TFSA] 的包封效率显着提高，从约 20-70%，该共聚物可能对 [Hmim][TFSA] 具有相对较低的亲和力。此外，使用三甘醇二甲基丙烯酸酯作为二乙烯基单体代替EGDM，成功制备了具有离子导电性的离子液体封装聚合物颗粒。
Encapsulation of ionic liquid, 1-hexyl-3-methylimidazolium bis(trifluoromethane sulfonyl)amide ([Hmim][TFSA]), was carried out by microsuspension polymerization of ethylene glycol dimethacrylate (EGDM) utilizing the self-assembling of phase-separated polymer method, which had been proposed by us for the preparation of hollow polymer particles. After the optimization of the polymerization conditions, ionic liquid-encapsulated polymer particles, which have smooth surface morphology and a single hollow structure, were successfully prepared. Encapsulation efficiency of [Hmim][TFSA] was significantly improved from about 20–70 % by changing the shell polymer from polyEGDM homopolymer to poly(EGDM-butyl methacrylate) (50/50,w/w) copolymer, which was likely to have relatively low affinity for [Hmim][TFSA]. Additionally, ionic liquid-encapsulated polymer particles displaying ionic conductivity were successfully prepared using triethylene glycol dimethacrylate as divinyl monomer instead of EGDM.