Double melting behavior of cyclic tris(ethylene terephthalate) |
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| Authors: | Dong II Yoo Seung Won Seo Wan Shik Ha |
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| Affiliation: | (1) Department of Textile Engineering, Chonnam National University, 500-757 Kwangju, Korea;(2) Central Research Laboratory, Tong Yang Nylon Company, 430-080 Anyang, Kyungki-do, Korea;(3) Department of Textile Engineering, Seoul National University, Kwanak-gu, 151-742 Seoul, Korea |
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| Abstract: | 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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