Liu, Di; Lin, Liming; Xie, Yunji; Pang, Jinhui; Jiang, Zhenhua published an article in 2021. The article was titled 《Anion exchange membrane based on poly(arylene ether ketone) containing long alkyl densely quaternized carbazole derivative pendant》, and you may find the article in Journal of Membrane Science.SDS of cas: 629-03-8 The information in the text is summarized as follows:
A series of poly(arylene ether ketone) copolymers (PAEK-HQACz-x) containing long alkyl densely quaternized carbazole derivative pendant was designed and synthesized for anion exchange membrane. It was found that constructing long alkyl chain between hydrophobic polymer backbone and hydrophilic densely functionalized hydrophilic pendant effective promoted the formation of well-defined microscopic phase separation morphol., in turn enabling high hydroxide conduction and confined dimensional variation. The PAEK-HQACz-0.7 membrane exhibited the hydroxide conductivity of 98.1 mS cm-1 at 80°C, while the swelling ratio was only 13.5%. The toughness and alk. stability of PAEK-HQACz-x membranes were also significantly improved by attaching the long alkyl chain onto the quaternized carbazole derivative pendant. The PAEK-HQACz-0.7 membrane was selected for membrane electrode assembly and showed acceptable results. These properties demonstrated such membranes to be promising anion exchange membrane candidates. In the experiment, the researchers used 1,6-Dibromohexane(cas: 629-03-8SDS of cas: 629-03-8)
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.SDS of cas: 629-03-8
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary