Synthesis of novel solvents that can solubilize Teflon and its application for membrane preparation

本研究合成了含全氟烷基的新型离子液体，并尝试对聚四氟乙烯（PTFE）进行增溶。在咪唑阳离子中引入全氟烷基，并以TFSA（双（三氟甲磺酰）酰胺）阴离子作为反阴离子。合成的离子液体在250℃时稳定。聚四氟乙烯粉末(约5 wt%)加入离子液体中，在250℃下加热48小时。观察到聚四氟乙烯粉末的膨胀，但不幸的是聚四氟乙烯粉末没有被溶解。

In this study, we synthesized novel ionic liquids bearing perfluoroalkyl groups and tried to solubilize polytetrafluoroethylene (PTFE). Perfluoroalkyl groups were introduced into imidazolium cations and TFSA (bis(trifluoromethanesulfonyl)amide) anion was used as a counter anion. The synthesized ionic liquids were stable at 250 °C. PTFE powder (approx. 5 wt%) was added to the ionic liquids and heated at 250 °C for 48 h. The swelling of the PTFE powder was observed but unfortunately the PTFE powder was not solubilized.