volume 32, issue 14, P964-970 1992
DOI: 10.1002/pen.760321408
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Abstract: Abstract The relationships between the supermolecular structure of poly(ethylene terephthalate) films subjected to cold drawing and subsequent zone annealing and their mechanical properties are investigated. The effectiveness of zone annealing is compared to that of annealing with fixed ends. Microstructural changes occurring during heat treatment and zone annealing are monitored using wide angle X‐ray scattering, small angle X‐ray scattering, infrared spectroscopy, differential scanning calorimetry, and stat…

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