BPADA-PPD polyetherimide

Figure 7.2 Chemical structure of BPADA-PPD polyetherimide (Ultem 5000 series).

For an amorphous resin, polyetherimide provides good solvent resistance [11]. These materials are acid-resistant, but can be attacked by caustic, alkyl amines, and ammonia. The BPADA-PPD-based polyetherimide provides the best solvent resistance of the commercially available, fully amorphous thermoplastic PEI grades. It will not dissolve in chlorinated solvents. 

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