Sean T. Hemp, Mingqiang Zhang, Michael H. Allen Jr., Shijing Cheng, Robert B. Moore and Timothy E. Long Comparing Ammonium and Phosphonium Polymerized Ionic Liquids: Thermal Analysis, Conductivity, and Morphology Macromolecular Chemistry and Physics 214
A large library of ammonium- and phosphonium-containing polymerized ionic liquids (PILs) enables a thorough structure–property analysis. The alkyl substituent length and counterion directly impact the thermal properties, wherein longer alkyl substituent lengths and bulkier counterions depress the glass transition temperature. Ultimately, phosphonium PILs exhibit superior thermal properties and ionic conductivities compared with ammonium analogs.
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