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New method for producing high-performance thermoplastic polymeric foams

✍ Scribed by Don K. Brandom; José P. Desouza; Donald G. Baird; Garth L. Wilkes

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 197 KB
Volume: 66
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19971121)66:8<1543::aid-app15>3.0.co;2-4

No coin nor oath required. For personal study only.

✦ Synopsis

A new method for the production of foamed thermoplastic polymers from blends of a poly(aryl ether ketone) (PAEK) and polyetherimide (PEI) is presented. The blowing agent for the foaming process is water which is produced at elevated temperatures in an extruder, via an in situ reaction between an amine end group on the PEI, and a ketone functionality on the backbone of the PAEK chain. The effect of composition, mixing, time, and temperature are investigated.

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