不同烷基链长度的Gemini表面活性剂分子构筑阴离子导电膜研究

发布时间：2018-04-23 13:52

  本文选题：Gemini表面活性剂 + 疏水链长度　； 参考：《化工新型材料》2017年06期

【摘要】：借助引发剂过硫酸钾(KPS)分别将3种Gemini表面活性剂分子(G_(16-2-16)、G_(12-2-12)和G_(8-2-8))聚合成线性高分子聚合物,然后将上述线性聚合物长链"锁定"在交联的季铵化壳聚糖网状结构中,制备3种半互穿网络阴离子交换膜。为了考察疏水长链的长度对阴离子膜电导率和机械性能的影响,对膜的离子交换量、电导率和机械性能等特性进行考察。结果表明:疏水链越长,越有利于膜内部相分离结构的形成,团簇效果越明显,同时增强了膜结构的机械性能。当烷基链长度由8个碳增至16个碳,膜拉伸强度由17.22MPa增加到20.08MPa,70℃下,电导率由(4.11×10~(-2))S/cm增加到(5.00×10~(-2))S/cm。
[Abstract]:By means of the initiator potassium persulfate (KPS), three kinds of Gemini surfactants were polymerized into linear polymers, respectively, by polymerizing three kinds of Gemini surfactants (Gill 16-2-16) and GSP 8-2-8), and then the linear polymer chains were "locked" in the cross-linked quaternary ammonium chitosan network. Three kinds of semi-interpenetrating network anion exchange membranes were prepared. In order to investigate the effect of the length of hydrophobic long chain on the conductivity and mechanical properties of anionic membrane, the ion exchange capacity, conductivity and mechanical properties of the membrane were investigated. The results show that the longer the hydrophobic chain is, the more favorable the formation of the phase separation structure is, the more obvious the cluster effect is, and the more the mechanical properties of the membrane structure are enhanced. When the length of alkyl chain was increased from 8 carbon to 16 carbon, the tensile strength of the film was increased from 17.22MPa to 20.08 MPA ~ (-1) 鈩，

本文编号：1792236