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.
Key words：TCL copolyesters;ET hard segments;Crystallization;Crystalline size;Conformers
张国颖，崔 哲，瞿保钧. 对苯二甲酸乙二醇酯-ε-己内酯共聚酯中硬链段结晶特性研究[J]. 光谱学与光谱分析, 2005, 25(08): 1371-1374.
ZHANG Guo-ying, CUI Zhe, QU Bao-jun. Studies on the Crystallization Characteristics of the Hard Segments in Ethylene Terephthalate-ε-Caprolactone Copolyesters . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(08): 1371-1374.
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