Polyetherimide (PEI) is a high-performance, thermoplastic polymer known for its excellent mechanical, thermal, and chemical resistance properties. It is part of the polyimide family of polymers and is characterized by its high glass transition temperature, which typically exceeds 200°C (392°F). ### Key Features of Polyetherimide: 1. **Thermal Stability**: PEI exhibits excellent heat resistance, making it suitable for applications that require stability at elevated temperatures.
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