Poly(diallyldimethylpyrrolidinium) bis(fluorosulfonyl)imide

Key Applications:

Electrochemical and Energy‑Storage Applications

• Solid and quasi‑solid polymer electrolytes for lithium, sodium, and multivalent metal batteries, leveraging high ionic conductivity and broad electrochemical stability.
• Binder–electrolyte hybrids in composite electrodes, improving interfacial contact and mechanical cohesion while maintaining ion transport.
• Ion‑gel matrices for flexible and stretchable energy‑storage devices.
• Electrochemical capacitors and hybrid supercapacitors, where the polymeric cation framework enhances mechanical stability under cycling.

Ion Transport, Membranes, and Separations

• Polymer membranes for ion‑selective transport, including Li⁺, Na⁺, and organic cations, supported by the FSI⁻ anion’s high mobility.
• Gas separation membranes, particularly for CO₂‑selective transport due to the polymer’s tunable free volume and ionic interactions.
• Solvent‑resistant filtration media for harsh chemical environments where conventional polymers degrade.

Advanced Materials and Coatings

• Antistatic and charge‑dissipative coatings, benefiting from permanent ionic conductivity and environmental stability.
• Surface‑modification layers for metals, ceramics, and carbon materials to improve wettability, adhesion, and interfacial ion transport.
• High‑temperature, non‑volatile polymer matrices for specialty composites requiring thermal and chemical resilience.

Catalysis and Chemical Processing

• Immobilized ionic liquid phases (poly‑IL supports) for heterogeneous catalysis, enabling catalyst retention and recyclability.
• Polymeric media for electro‑catalytic interfaces, where ionic mobility and mechanical integrity are both required.
• Stabilizing matrices for reactive intermediates in electro‑organic synthesis.

Sensors, Actuators, and Soft Electronics

• Ionically conductive layers in soft actuators, electroactive polymers, and artificial muscles.
• Solid‑state ionic transducers for humidity, pressure, and chemical sensing.
• Flexible electronic components, including dielectric layers and ion‑gel gate dielectrics for organic field‑effect transistors.

Additive Manufacturing and Processing

• Functional polymer inks for 3D printing and direct‑write fabrication of conductive or ion‑transporting structures.
• Rheology modifiers in composite formulations where ionic interactions tune viscosity and curing behavior.

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