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- W4386508757 abstract "Abstract The interest in bio‐based alternatives to classical polyesters such as poly(ethylene terephthalate) (PET) and poly(butylene terephthalate) (PBT) is steadily growing to achieve a more sustainable approach to polymer materials. In this study, PBT/poly(butylene furanoate) (PBF) blends are prepared, characterized and extrusion foamed. PBF as a bio‐based polyester offers two advantages. The ecological footprint of the material is reduced, and additionally, it can be used in Diels‐Alder reactions at the blend surface to support fusion of the foamed beads. The blending behavior of the polyesters is investigated using samples prepared in a microcompounder, particularly focused on the miscibility of the blends and transesterification reactions. The blends are thermodynamically immiscible but show a certain degree of transesterification according to nuclear magnetic resonance (NMR) spectroscopy. The morphology of blend beads produced by an extrusion foaming process is analyzed regarding their cell density, cell size distribution, and open‐cell content. It is shown that PBF has a positive effect on the bead foam morphology. The use of a bifunctional linker designed for chemical fusion of the bead surfaces allows to obtaining of molded parts, in contrast to beads containing pure PBT." @default.
- W4386508757 created "2023-09-08" @default.
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- W4386508757 date "2023-09-07" @default.
- W4386508757 modified "2023-10-18" @default.
- W4386508757 title "Partially Bio‐Based Polyester Bead Foams via Extrusion Foaming of Poly(Butylene Terephthalate)/Poly(Butylene Furanoate) Blends" @default.
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- W4386508757 doi "https://doi.org/10.1002/mame.202300281" @default.
- W4386508757 hasPublicationYear "2023" @default.
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