| KINETICS OF NON-ISOTHERMAL CRYSTALLIZATION OF POLY (ETHYLENE TEREPHTHALATE) MODIFIED BY POLY (ETHYLENE GLYCOL) |
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| 引用本文： | 张志英,吴世臻,杜莹华,曹振林. KINETICS OF NON-ISOTHERMAL CRYSTALLIZATION OF POLY (ETHYLENE TEREPHTHALATE) MODIFIED BY POLY (ETHYLENE GLYCOL)[J]. 高分子科学, 1991, 0(4): 318-325 |
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| 作者姓名： | 张志英 吴世臻 杜莹华 曹振林 |
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| 作者单位： | Department of Textile Chemitry，Tianjin Institute of Textile Science and Technology，Tianjin，Department of Textile Chemitry，Tianjin Institute of Textile Science and Technology，Tianjin，Department of Textile Chemitry，Tianjin Institute of Textile Science and Technology，Tianjin，Department of Textile Chemitry，Tianjin Institute of Textile Science and Technology，Tianjin |
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| 摘 要： | The non-isothermal crystallization kinetics of poly(ethylene terephthalate) (PET) modified by poly (ethlene glycol) (PEG) were determined by DSC. The dual linear regression method was used to evaluate the relationship between the reciprocal of t 1/2 ( the half life of crystallization) and the appropriate temperature variable. The parameters such as the activation energy (Ed) for transport, the equilibrium melting temperature (T_m~0),the nucleation parameter (ψ),themaximum crystallization temperature (T_(e, max)), and the kinetic crystallizability (G) for the copolyesters were obtained. The influence of the PEG content in PET chains on the parameters characterizing crystallization kinetics and crystallization thermodynamics was discussed.
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| 收稿时间： | 1990-11-20 |
KINETICS OF NON-ISOTHERMAL CRYSTALLIZATION OF POLY (ETHYLENE TEREPHTHALATE) MODIFIED BY POLY (ETHYLENE GLYCOL) |
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| ZHANG Zhiying,WU Shizhen,DU Yinghua,CAO Zhenlin. KINETICS OF NON-ISOTHERMAL CRYSTALLIZATION OF POLY (ETHYLENE TEREPHTHALATE) MODIFIED BY POLY (ETHYLENE GLYCOL)[J]. Chinese Journal of Polymer Science, 1991, 0(4): 318-325 |
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| Authors: | ZHANG Zhiying WU Shizhen DU Yinghua CAO Zhenlin |
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| Affiliation: | Department of Textile Chemitry; Tianjin Institute of Textile Science and Technology; Tianjin |
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| Abstract: | The non-isothermal crystallization kinetics of poly(ethylene terephthalate) (PET) modified by poly (ethlene glycol) (PEG) were determined by DSC. The dual linear regression method was used to evaluate the relationship between the reciprocal of t 1/2 ( the half life of crystallization) and the appropriate temperature variable. The parameters such as the activation energy (Ed) for transport, the equilibrium melting temperature (Tm0),the nucleation parameter (ψ),themaximum crystallization temperature (Tc,max), and the kinetic crystallizability (G) for the copolyesters were obtained.The influence of the PEG content in PET chains on the parameters characterizing crystallization kinetics and crystallization thermodynamics was discussed. |
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| Keywords: | Poly (ethylene glycol)/Poly (ethylene terephthalate) copolyester Non-isothermal crystallization Crystallization kinetics Differential scanning calorimetry (DSC) |
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