| PBs/PET共混体系的制备与表征 |
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| 引用本文： | 高明,王秀芬,潘则林.PBs/PET共混体系的制备与表征[J].北京化工大学学报(自然科学版),2004,31(3):66-69,73. |
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| 作者姓名： | 高明 王秀芬 潘则林 |
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| 作者单位： | 北京化工大学材料科学与工程学院,北京,100029;中科院化学所,北京,100080 |
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| 基金项目： | male，bornin 1 978，graduatestudent |
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| 摘 要： | 以丁二酸、丁二醇为原料,通过直接缩聚反应合成了高分子量聚丁二酸丁二醇酯。并将聚丁二酸丁二醇酯 (PBS)同聚对苯二甲酸乙二醇酯 (PET)在不同温度下熔融共混。测定了不同组分共混物的熔点和水降解性。聚合物熔融峰随着共混时间的增加渐渐的下移。这说明PBS和PET热降解和酯交换反应随着共混温度的增加而同时发生。共混物的降解性与芳香组分的含量和链段长度都有关。
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| 关 键 词： | 聚丁二酸丁二醇酯 聚对苯二甲酸乙二醇脂 降解性 |
| 收稿时间： | 2003-11-19 |
Preparation and characterization of poly(butylene succinate)/poly (ethylene terephthalate) copolyester |
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| Abstract.Preparation and characterization of poly(butylene succinate)/poly (ethylene terephthalate) copolyester[J].Journal of Beijing University of Chemical Technology,2004,31(3):66-69,73. |
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| Authors: | Abstract |
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| Institution: | 1 College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029; 2 Institute of Chemistry; Chinese Academy of Sciences,Beijing 100029; China |
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| Abstract: | High molecular weight poly (butylene succinate) was obtained from succinic acid and 1,4 butanediol through a polycondensation process. The block copolymers of poly(butylene succinate)(PBS) and poly(ethylene terephthalate)(PET) were synthesized by a melting process at different times. Thermal properties and hydrolytic degradability were investigated over a wide range of compositions. The melting peak ( T m) gradually moved to lower temperature with increase in melt processing time. It can be seen that the thermal degradation and the transesterification between PBS and PET will occur with increase in mixing time and the hydrolytic degradability of the copolyesters depends on both the terephthalate unit in the composition and the average block length of the aromatic unit. |
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| Keywords: | poly(butylene succinate) poly(ethylene terephthalate) biodegradability |
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