The melting of defect polymer crystals
โ Scribed by B. Wunderlich
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- English
- Weight
- 814 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0032-3861
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## Abstract The melting of poly(ethylene terephthalate) is analyzed by quasiโisothermal, temperatureโmodulated differential scanning calorimetry. The measurement is done by sinusoidally changing the temperature in the melting range (ยฑ 1.0 K). In the melting range a small portion of the sample melts
Reproducibility of repeated crystallization experiments from melts is obtained after annealing the melt at a sufficiently high temperature for short time, or at lower temperatures for longer time. This annealing process erases the polymer melt memory. Its physical origin remains elusive, but it is l