Structure evolution in melt crystallised PEEK

The melt crystallisation of PEEK has been analysed using dynamic small and wide angle scattering, in addition, differential scanning calorimetry has also been used. The crystallisation data have been analysed in terms of the Avrami, Hoffman–Lauritzen and Cahn–Hilliard models. The mechanistic n value...

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Bibliographic Details
Published in:Polymer (Guilford) 2003-10, Vol.44 (22), p.6781-6787
Main Authors: Jenkins, M.J., Hay, J.N., Terrill, N.J.
Format: Article
Language:English
Subjects:
Applied sciences
Crystallization
Exact sciences and technology
Organic polymers
PEEK
Physicochemistry of polymers
Properties and characterization
Small angle X-ray
Wide angle X-ray
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Summary:The melt crystallisation of PEEK has been analysed using dynamic small and wide angle scattering, in addition, differential scanning calorimetry has also been used. The crystallisation data have been analysed in terms of the Avrami, Hoffman–Lauritzen and Cahn–Hilliard models. The mechanistic n values, nucleation constant, Kg, and the effective diffusion co-efficient for the crystallisation of PEEK in the temperature range 290–320 °C are reported. These results are discussed in terms of the level of insight they give into the nucleation process.
ISSN:0032-3861
1873-2291
DOI:10.1016/S0032-3861(03)00749-3