Dendritic Amphiphile-Decorated PolyHIPE as a Highly Efficient and Well Recyclable Scavenger of Micropollutants in Water: Topological Effect
Dendritic Amphiphile-Decorated PolyHIPE as a Highly Efficient and Well Recyclable Scavenger of Micropollutants in Water: Topological Effect
复制标题
树枝状两亲物修饰的 PolyHIPE 作为一种高效且可回收的水中微污染物清除剂：拓扑效应
DOI：
10.1002/pola.28455
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Wan Decheng
中科院分区：
文献类型：
--
作者：
Feng Yanyan;Zhang Xiaoxue;Jin Ming;Wan Decheng
本文发现，固定在聚(高内相乳液)多孔固体(HIPE和polyHIPE)上的两亲物的拓扑结构对于从水中提取污染物至关重要。支化聚乙烯亚胺（bPEI）与缩水甘油基封端的聚（苯乙烯-co-2-丙烯酸乙基己酯）聚合物[P(S-EHA)]进行N-烷基化，得到bPEI@P(S-EHA)的树枝状两亲物，并且通过用线性PEI（lPEI）替换bPEI类似地制备了梳状对应物（lPEI@P(S-EHA)。每个两亲物可以研究发现，bPEI@P(S-EHA) 控制的 polyHIPE 消除水中阴离子染料的能力比线性吸附剂强 50 倍，这表明优化的吸附剂对染料的结合能力比代表性吸附剂强 10,000 倍以上，因此可以处理水中的痕量污染物。 Wiley Journals, Inc.《高分子科学》，A 部分：《高分子化学》。2017,55, 1294–1302
It is found herein that topology of amphiphiles immobilized on a porous solid of poly(high internal phase emulsion) (HIPE and polyHIPE) is critical to extraction pollutants from water. N‐alkylation of branched polyethylenimine (bPEI) with a glycidyl‐capped polymer of poly(styrene‐co−2‐ethylhexyl acrylate) [P(S‐EHA)] results in a dendritic amphiphile of bPEI@P(S‐EHA), and a comb‐like counterpart (lPEI@P(S‐EHA) is similarly prepared by replacing bPEI with a linear PEI (lPEI). Each amphiphile can act as a stabilizer to directly prepare polyHIPE whose surface is dictated by the respective amphiphile. It is found that bPEI@P(S‐EHA)‐dictated polyHIPE can be over 50‐fold stronger to eliminate anionic dyes from water than the linear counterpart, indicating a significant topological effect. The optimized adsorbent is over 10,000‐fold stronger to bind a dye than a representative adsorbent, thus may deal with trace pollutants in water. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem.2017,55, 1294–1302