1-Butyl-3-vinylimidazolium bis(trifluoromethylsulfonyl)imide, CAS: 758716-72-2

Key Applications:

Polymer and Materials Engineering

• Polymerizable ionic liquid monomer for synthesizing poly(ionic liquid)s (PILs) via free‑radical, UV, or thermal polymerization.
• Crosslinkable electrolyte matrices where the vinyl group enables covalent incorporation into polymer backbones, improving mechanical stability and ion transport.
• Functional copolymers with tunable charge density for membranes, coatings, and ion‑exchange materials.
• Solid polymer electrolytes with high electrochemical stability due to the TFSI anion.

Energy Storage and Electrochemical Systems

• Lithium‑ion and sodium‑ion battery electrolytes, especially polymer‑gel or solid‑state systems requiring immobilized ionic domains.
• Electrochemical actuators and soft robotics components, where polymerized ionic liquids provide high ionic conductivity and flexibility.
• Supercapacitor electrode binders and separators, leveraging the monomer’s ability to form ion‑conductive polymer networks.

Advanced Membranes and Separation Technologies

• Gas separation membranes (CO₂‑selective materials) using polymerized ionic liquid structures with high CO₂ affinity.
• Ion‑exchange and pervaporation membranes where the vinyl‑functionalized cation enhances selectivity and stability.
• Water treatment and desalination membranes incorporating PIL domains for antifouling and enhanced transport.

Surface Modification and Coatings

• Cationic surface‑grafted films formed via in situ polymerization on metals, ceramics, or polymers.
• Antistatic and conductive coatings with stable ionic conductivity and low volatility.
• Adhesion‑promoting layers for composites and microfabrication due to the vinyl group’s reactivity.

Catalysis and Reaction Media

• Immobilized ionic liquid catalysts where polymerization locks the ionic liquid into a solid support.
• Task‑specific polymeric solvents for metal‑catalyzed reactions, electrochemical transformations, and CO₂‑related chemistry.
• Supported ionic liquid phases (SILPs) with enhanced thermal and mechanical stability.

Additive Manufacturing and Photopolymerization

• Photo‑curable ionic liquid resins for 3D printing, microfabrication, and lithography.
• Electroactive printed components where the ionic liquid monomer contributes to conductivity and chemical robustness.

Analytical and Sensor Technologies

• Ion‑conductive polymer films for electrochemical sensors, impedance devices, and flexible electronics.
• Polymerized ionic liquid matrices for solid‑state sensing platforms requiring stable ionic mobility.

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