| 聚酯的链结构对玻璃态松弛的影响 |
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| 引用本文： | 卜海山. 聚酯的链结构对玻璃态松弛的影响[J]. 复旦学报(自然科学版), 1989, 28(1): 1-7 |
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| 作者姓名： | 卜海山 |
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| 作者单位： | 复旦大学材料科学系(卜海山，庞嬿婉，陈建华)，复旦大学材料科学系(于同隐) |
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| 摘 要： | ![]()
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| 关 键 词： | 玻璃化转变 焓松弛 DEG PET |
THE EFFECT OF CHAIN STRUCTURE ON THE GLASS STATE RELAXATION PROCESSES OF POLYESTER |
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| Bu Haishan,Pang Yanwan,Chen Jianhua,Yu Tongyin,. THE EFFECT OF CHAIN STRUCTURE ON THE GLASS STATE RELAXATION PROCESSES OF POLYESTER[J]. Journal of Fudan University(Natural Science), 1989, 28(1): 1-7 |
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| Authors: | Bu Haishan Pang Yanwan Chen Jianhua Yu Tongyin |
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| Affiliation: | Department of Materials Science |
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| Abstract: | ![]()
By means of DSC, DMA and density measurement, the effects of diethyleneglycol (DEG) unit on the relaxation processes of the glassy polyethylene tereph-thalate (PET) below the glass transition temperature (T_g) were studied. Theinfluences of DEG on enthalpy and volume relaxation are discussed based onincreasing mobility and irregularity of chain due to the introduction of DEG in ochain, and also the influences of the glassy relaxation of PET on T_g are discussed.In addition, the reliability of the density for the pure PET by extrapolation thedensity to zero DEG content is discussed. |
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| Keywords: | polyethylene terephthalate diethylene glycol glass transition enthalpy relaxation volume relaxation. |
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