Papageorgiou Dimitrios G, Tsetsou Irini, Ioannidis Raphael O, Nikolaidis George N, Exarhopoulos Stylianos, Kasmi Nejib, Bikiaris Dimitrios N, Achilias Dimitris S, Papageorgiou George Z
School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
Chemistry Department, University of Ioannina, P.O. Box 1186, 45110 Ioannina, Greece.
Polymers (Basel). 2021 Mar 29;13(7):1070. doi: 10.3390/polym13071070.
The industrialisation of poly(ethylene 2,5-furandicarboxylate) for total replacement of poly(ethylene terephthalate) in the polyester market is under question. Preparation of high-performing polymer blends is a well-established strategy for tuning the properties of certain homopolymers and create tailor-made materials to meet the demands for a number of applications. In this work, the structure, thermal properties and the miscibility of a series of poly(ethylene terephthalate)/poly(ethylene 2,5-furandicarboxylate) (PET/PEF) blends have been studied. A number of thermal treatments were followed in order to examine the thermal transitions, their dynamic state and the miscibility characteristics for each blend composition. Based on their glass transition temperatures and melting behaviour the PET/PEF blends are miscible at high and low poly(ethylene terephthalate) (PET) contents, while partial miscibility was observed at intermediate compositions. The multiple melting was studied and their melting point depression was analysed with the Flory-Huggins theory. In an attempt to further improve miscibility, reactive blending was also investigated.
聚(2,5-呋喃二甲酸乙二酯)在聚酯市场中完全替代聚(对苯二甲酸乙二酯)的工业化进程受到质疑。制备高性能聚合物共混物是一种成熟的策略,用于调整某些均聚物的性能并制造定制材料以满足多种应用的需求。在这项工作中,研究了一系列聚(对苯二甲酸乙二酯)/聚(2,5-呋喃二甲酸乙二酯)(PET/PEF)共混物的结构、热性能和相容性。进行了多种热处理,以研究每种共混物组成的热转变、动态状态和相容性特征。基于它们的玻璃化转变温度和熔融行为,PET/PEF共混物在高和低聚(对苯二甲酸乙二酯)(PET)含量下是可混溶的,而在中间组成下观察到部分混溶。研究了多重熔融,并使用弗洛里-哈金斯理论分析了它们的熔点降低。为了进一步提高相容性,还研究了反应性共混。