| 阳离子染料可染共聚酯的结构及性能 |
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| 引用本文： | 孙玉,郑帼.阳离子染料可染共聚酯的结构及性能[J].高分子材料科学与工程,2009(3):82-84,88. |
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| 作者姓名： | 孙玉 郑帼 |
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| 作者单位： | 天津工业大学高新技术实业公司; |
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| 基金项目： | 中石化阳离子染料可染改性剂项目(205009) |
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| 摘 要： | 采用动态力学分析法(DMA)、热重法(TGA)及X射线衍射法对常规PET、CDP及醚型ECDP的结构及性能进行了研究。结果表明,CDP的Tg高于PET,但其Tα′及Tm均低于PET。ECDP的Tg、Tα′及Tm均低于PET和CDP,并且随PEG含量及分子量的增加而降低;热解活化能(ΔEd)随着SIPE与PEG含量的增加而降低,即热稳定性降低;另外,与常规PET相比,CDP及ECDP的衍射峰位置基本没有改变,改性共聚酯的组分并未砌入晶格,而是存在于无定型区。
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| 关 键 词： | 阳离子染料可染 共聚酯 玻璃化转变温度 热稳定性 结晶性 |
Structures and Properties of Cationic Dyeable Copolyester |
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| SUN Yu,ZHENG Guo.Structures and Properties of Cationic Dyeable Copolyester[J].Polymer Materials Science & Engineering,2009(3):82-84,88. |
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| Authors: | SUN Yu ZHENG Guo |
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| Affiliation: | Hi-Technical Co.;Tianjin Polytechnic University;Tianjin 300160;China |
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| Abstract: | The structures and properties of PET,CDP and ECDP were analyzed by DMA,TGA and X-ray diffraction.The results suggeste that glass transition temperature(Tg) of CDP is higher than PET,but the pre-melting temperature(Tα’) and Tm are lower than those of PET.Tg,Tα’ and Tm of ECDP decrease with increasing content and molecular weight of PEG.The thermal stability of copolyester decreases with increasing content of SPIE and PEG.The position of X-ray diffraction peak of CDP and ECDP is the same as which of PET,the composition of copolyester does not change the original PET unit cell and they gather in the amorphous regions. |
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| Keywords: | cationic dyeable copolyester glass transition temperature(Tg) thermal stability crystalline property |
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