Abstract
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.
Highlights
Not surprisingly, over the last decade there is growing interest in the preparation of new chemicals and materials based on renewable resources; biomass-derived fuel and chemicals are a promising alternative to fossil based materials [1,2]
For poly(ethylene terephthalate) (PET), the thermodynamically stable a-form appeared from the characteristic wide-angle X-ray diffractometry (WAXD) pattern, with a triclinic unit cell with a = 4.56 Å, b = 5.94 Å, c = 10.75 Å, α = 98.5◦, β = 118◦, and γ = 112◦ [32]
The thermal transition temperatures and the thermodynamics of miscibility phenomena have been studied in detail bythe the use of advanced calorimetric techniques and measurement strategies
Summary
Compatibility and Perspectives of Sustainable Alipharomatic Poly(ethylene terephthalate)/Poly(ethylene 2,5-furandicarboxylate) Blends. Papageorgiou 1, * , Irini Tsetsou 2 , Raphael O. Nikolaidis 2 , Stylianos Exarhopoulos 3 , Nejib Kasmi 4 , Dimitrios N.
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