Bogdanowicz Krzysztof Artur, Pirone Domenico, Prats-Reig Judit, Ambrogi Veronica, Reina José Antonio, Giamberini Marta
Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans 26, Campus Sescelades, 43007 Tarragona, Spain.
Military Institute of Engineer Technology, 136 Obornicka Street, 50-961 Wroclaw, Poland.
Polymers (Basel). 2018 Apr 9;10(4):416. doi: 10.3390/polym10040416.
Low-modified liquid-crystalline polyether (CP36), as a model compound, was synthesised with the purpose of preparing a membrane with columnar ionic channels. A free-standing cation permselective biomimetic membrane was successfully prepared and found to have channels made of polymeric columns homeotropically oriented, which was confirmed in X-ray diffraction (XRD) analysis. A first insight into a real-time interaction between two selected cations: H⁺ and Na⁺, and polyether during transport through the polymeric membrane was demonstrated using joined chronoamperometry and Raman spectroscopy techniques. Raman studies unveiled the possibility for smaller protons to bypass the usual ionic pathway via polyetheric chain and use outer part of ionic channel for conduction thanks to ester bonds.
低改性液晶聚醚（CP36）作为模型化合物被合成，目的是制备具有柱状离子通道的膜。成功制备了一种独立的阳离子选择性渗透仿生膜，发现其具有由垂直取向的聚合物柱构成的通道，这在X射线衍射（XRD）分析中得到了证实。使用联合计时电流法和拉曼光谱技术，首次深入研究了两种选定阳离子（H⁺和Na⁺）与聚醚在通过聚合物膜传输过程中的实时相互作用。拉曼研究揭示了较小的质子有可能绕过通过聚醚链的常规离子路径，并由于酯键的存在利用离子通道的外部进行传导。
