1-(2-Methoxyethyl)-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, CAS: 757240-24-7

Key Applications:

Electrochemical Systems

• Lithium metal and lithium‑ion battery electrolytes: Ether-functional cation enhances Li⁺ coordination and interfacial stability; TFSI⁻ provides wide electrochemical windows and high oxidative resistance.
• Supercapacitors and hybrid capacitors: Low viscosity relative to longer-chain pyrrolidinium ILs improves ion mobility and reduces ESR.
• Electrodeposition media: Suitable for controlled deposition of reactive or air‑sensitive metals due to negligible vapor pressure and high thermal stability.

Energy and Thermal Management

• Heat‑transfer and thermal‑storage fluids: High thermal stability and low flammability support use in closed-loop systems requiring non‑volatile, non‑corrosive media.
• Electrothermal actuators and devices: Stable ionic conductivity across broad temperature ranges enables consistent performance in thermally cycled environments.

Catalysis and Synthesis

• Solvent and co‑solvent for transition‑metal catalysis: Ether functionality improves solvation of polar substrates while TFSI⁻ maintains low coordinating behavior.
• Medium for selective organic transformations: Supports reactions requiring high polarity, low nucleophilicity, and thermal robustness.
• Phase‑transfer and biphasic catalysis: Immiscibility with many organic solvents enables catalyst recycling and simplified separation.

Materials Science and Polymer Processing

• Polymer electrolytes and ionogels: Forms stable, conductive networks when immobilized in polymer matrices; ether group enhances miscibility with PEG‑based systems.
• Plasticization and processing aid: Reduces Tg in certain engineering polymers and facilitates melt processing under controlled conditions.
• Nanomaterials synthesis: Provides a stable, tunable environment for nanoparticle nucleation and growth with minimized aggregation.

Analytical and Separation Technologies

• Chromatographic stationary‑phase modifier: Tailors polarity and selectivity in IL‑modified phases.
• Electrophoretic media: High ionic strength and low volatility support stable, reproducible separations.

Surface and Interface Engineering

• Lubrication and anti‑wear films: Strong interfacial adsorption and thermal stability enable use in high‑temperature or vacuum tribological systems.
• Surface functionalization medium: Ether group improves compatibility with oxide and polymer surfaces during modification or grafting processes.

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