He, Xiaohui; Zou, Jianhua; Guo, Yan; Wang, Kai; Wu, Bin; Wen, Yufei; Zang, Xiujing; Chen, Defu published their research in Polymer in 2021. The article was titled 《Synthesis of halogenated benzonorbornadiene monomer and preparation of self-crosslinking bisimidazole cationic functionalized benzonorbornadiene triblock copolymer anion exchange membrane》.Synthetic Route of C6H12Br2 The article contains the following contents:
In this paper, a series of anion exchange membranes of bisimidazolium functionalized triblock copolymers were synthesized by ring-opening metathesis polymerization of alkyl bromide functionalized benzonorbornadiene derivatives, 1,2-di-Me imidazole and epoxy functionalized norbornene under the action of Grubbs 2nd catalyst. The designed decomposition temperature of the triblock copolymer anion exchange membrane (AEM) exceeded 320 °C, which was much higher than the actual working temperature of anion exchange membrane fuel cell. TEM and AFM characterization proved that the AEM had formed an obvious microphase separation structure. The OH- conductivity of AEM-40 at 80 °C was as high as 56.09 mS cm-1. The single cell performance of the prepared AEM was tested at 60 °C, and we found that AEM-40 reached the highest power d. of 189.1 mW cm-2 at 352.1 mA cm-2. The experimental part of the paper was very detailed, including the reaction process of 1,6-Dibromohexane(cas: 629-03-8Synthetic Route of C6H12Br2)
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.Synthetic Route of C6H12Br2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary