✦ LIBER ✦

Influence of annealing on structure of poly(aryl ether ether ketone ketone) revealed by SAXS

✍ Scribed by Tianxi Liu; Zhishen Mo; Hongfang Zhang; Guang Li

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 147 KB
Volume: 69
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19980829)69:9<1829::aid-app18>3.0.co;2-g

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✦ Synopsis

Structural studies of poly(aryl ether ether ketone ketone) (PEEKK) using small-angle X-ray scattering and one-dimensional electron density correlation function methods revealed that its aggregated state structure was significantly influenced by the annealing temperature. The long period L, the average thickness of the lamellae d, the electron density difference between the crystalline and amorphous regions h c 0 h a , and the invariant Q increased with increasing annealing temperature, but it was opposite to the case of the specific inner surfaces O s . A transition zone existed between the traditional ''two phases'' with a dimension about 0.5 nm for semicrystalline PEEKK.

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