《Multiple Enhancement Effects of Crown Ether in Tröger’s Base Polymers on the Performance of Anion Exchange Membranes》 was published in ACS Applied Materials & Interfaces in 2020. These research results belong to Yang, Qian; Cai, Yuan Yuan; Zhu, Zhao Yu; Sun, Li Xuan; Choo, Yvonne Shuen Lann; Zhang, Qiu Gen; Zhu, Ai Mei; Liu, Qing Lin. Recommanded Product: 1,6-Dibromohexane The article mentions the following:
The development of anion exchange membranes (AEMs) is hindered by the trade-off of ionic conductivity, alk. stability, and mech. property. Troger’s base polymers (Tb-polymers) are recognized as promising membrane materials to overcome these obstacles. Herein, the AEMs made from Tb-poly(crown ether)s (Tb-PCEs) show good comprehensive performance. The influence of crown ether on the conductivity and alk. stability of AEMs has been investigated in detail. The formation of hydronium ion-crown ether complexes and an obvious microphase separated structure formed by the existence of crown ether can enhance the conductivity of the AEMs. The maximum ionic conductivity of 141.5 mS cm-1 is achieved from the Tb-PCEs based AEM (Tb-PCEs-1) at 80 oC under 100% humidity. The ion-dipole interaction of the Na+ with crown ether can protect the quaternary ammonium from the attack of OH- to improve the alk. stability of AEMs. After 480 h alk. treatment, the ionic conductivity of Tb-PCEs-1 only decreases by 6%. The single cell fabricated by the Tb-PCEs-1 shows a peak power d. of 0.202 W cm-2 at 80 oC. The prominent physicochem. properties are attributed to the well-developed microstructure of the Tb-PCEs, as revealed by TEM, AFM and SAXS observations. In addition to this study using 1,6-Dibromohexane, there are many other studies that have used 1,6-Dibromohexane(cas: 629-03-8Recommanded Product: 1,6-Dibromohexane) was used in this study.
1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Recommanded Product: 1,6-Dibromohexane
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary