Summary
Cyclic tris(ethylene terephthalate) (CTET) was separated from oligomeric extract of poly(ethylene terephthalate) by the conventional solvent separation method. The structure of CTET was characterized by differential scanning calorimetry, X-ray diffraction, and scanning electron microscopy. It is shown that the double melting behavior of meltcrystallized CTET is attributed to the morphological change created by heat-treatment. The effect of the morphological change on the crystal structure of CTET was also examined.
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Yoo, D.I., Seo, S.W. & Ha, W.S. Double melting behavior of cyclic tris(ethylene terephthalate). Polymer Bulletin 28, 593–599 (1992). https://doi.org/10.1007/BF00296051
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DOI: https://doi.org/10.1007/BF00296051