Used primarily in high-performance engineering thermoplastics, this material combines the thermal stability of polyimides with the flexibility and processability of silicones. It is widely applied in aerospace and electronics industries due to its excellent resistance to heat, radiation, and mechanical stress. Common uses include wire and cable insulation, structural components in aircraft, and encapsulation of electronic devices where long-term durability under extreme conditions is required. Its inherent flame resistance and low smoke emission make it suitable for public transportation interiors and safety-critical systems. Additionally, it serves in membranes for gas separation processes, leveraging its selective permeability and stability under pressure and temperature variations.