Comparison between Phosphonium Docusate Ionic Liquids and Their Equimolar Mixtures with Alkanes: Temperature-Dependent Viscosity, Glass Transition, and Fragility.

ABSTRACT: In this study, we determined the temperature-dependent viscosities, glass transition temperatures, and fragilities of tetraalkylphosphonium docusate ionic liquids (ILs) and their equimolar mixtures with alkanes to elucidate the effects of the alkyl groups on the phosphonium cation. The target ILs were the docusate salts with tributylheptylphosphonium ([P₄₄₄₇][doc]), tributyltetradecylphosphonium ([P_444,14][doc]), butyltrihexylphosphonium ([P₄₆₆₆][doc]), trihexylheptylphosphonium ([P₆₆₆₇][doc]), and trihexyltetradecylphosphonium cations ([P_666,14][doc]). The comparable IL/alkane mixtures were equimolar mixtures of IL and alkane with the same carbon numbers of the target ILs: [P₄₄₄₇][doc]/hexane to [P₆₆₆₇][doc]; [P<

SUBMITTER: Shirota H 

PROVIDER: S-EPMC11411650 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature