July 2024
Intermediate to advanced
280 pages
12h 52m
English
Content preview from The Essential Handbook of Polymer Terms and Attributes
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149 Polyetherimide
Polyetherimide (PEI) is a polymer containing cyclic imide, especially of the five-membered ring and ether units in the backbone. PEI is categorized as a special class of polyimide (PI), which is a condensation polymer derived from bifunctional carboxylic anhydrides and primary diamines.
PEI was first developed in 1982 by General Electric Company (now known as SABIC) under the trade name ULTEM resin (Figure 149.1).
PEI offers an impressive collection of attributes such as high heat resistance, stiffness, impact strength, transparency, high mechanical strength, good electrical properties, high flame resistance, low smoke generation, and broad chemical resistance.
Applications:
PEI is a high-performance ...
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