Ultrafine polystyrene nanofibers and its application in nanofibrous membranes
Ultrafine polystyrene nanofibers and its application in nanofibrous membranes
复制标题
超细聚苯乙烯纳米纤维及其在纳米纤维膜中的应用
DOI：
10.1016/j.cej.2014.11.118
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发表时间：
2015-03-15
影响因子：
15.1
通讯作者：
Liu, Qing Lin
中科院分区：
文献类型：
--
作者：
Li, Hong Mei;Zhang, Qiu Gen;Liu, Qing Lin
聚合物纳米纤维由于其优异的性能在许多领域得到了广泛的应用。在这里，新的超细（约19 nm）纳米纤维制备从非常稀的聚苯乙烯（PS）溶液通过一个简单的方法基于快速冷冻技术。分子量（Mw）和溶剂对聚合物的形成有显著影响。所得的PS纳米纤维由多个相互连接的PS链组成，并单分散在乙醇溶液中。同时，将纳米纤维用于直接过滤制备高孔膜。所制备的膜具有高达87%的高孔隙率，超疏水和超亲油表面，以及显示出快速和高效的亚甲基蓝吸附。新开发的聚苯乙烯纳米纤维在纳米纤维和废水处理方面具有巨大的应用潜力。(C)2014爱思唯尔有限公司版权所有。
Polymer nanofibers have raising increasing interest for a wide class of applications due to the excellent properties. Here novel ultrafine (about 19 nm) nanofibers are prepared from very dilute polystyrene (PS) solution via a facile approach based on the fast freeze technique. The molecular weight (Mw) and solvents have significant influences on the nanofiber formation. The resulting PS nanofibers are consisted of several inter-connected PS chains and monodispersed in ethanol solution. Meanwhile, the nanofibers are used to fabricate the high porous membrane by direct filtration. The as-fabricated membranes have a high porosity up to 87%, a super-hydrophobic and super-lipophilic surface, as well as show a fast and high-efficiency adsorption for methylene blue. The newly developed PS nanofibers have a great potential application in nanofabrication and wastewater treatment. (C) 2014 Elsevier B.V. All rights reserved.