光谱学与光谱分析 |
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Studies on the Crystallization Characteristics of the Hard Segments in Ethylene Terephthalate-ε-Caprolactone Copolyesters |
ZHANG Guo-ying, CUI Zhe, QU Bao-jun |
Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China |
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Abstract The crystallization characteristics of the ethylene terephthalate (ET) hard segments in ethylene terephthalate-ε-caprolactone (TCL) copolyesters were studied by wide-angle X-ray diffraction (WAXD) and Fourier transform infrared spectroscopy (FTIR).It was found that in TCL copolyesters with high hard segment content, the ET hard segment can crystallize to form the crystals having the similar lattice structure as that of pure poly(ethylene terephthalate) (PET).The lamellar thickness and the crystallinity of the ET crystals depend on the ET segment sequence length.As the segment sequence length decreases, the lamellar thickness and the crystallinity decrease.
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Received: 2004-03-18
Accepted: 2004-06-28
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Corresponding Authors:
ZHANG Guo-ying
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Cite this article: |
ZHANG Guo-ying,CUI Zhe,QU Bao-jun. Studies on the Crystallization Characteristics of the Hard Segments in Ethylene Terephthalate-ε-Caprolactone Copolyesters [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(08): 1371-1374.
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https://www.gpxygpfx.com/EN/Y2005/V25/I08/1371 |
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