Comprehensive set of data from FTIR, DSC, TGA, and Tensile Test of PEF- and PBF-Based Blends with Epoxidized Natural Rubber

This dataset contains supplementary materials related to the publication “Ecofriendly PEF and PBF-based blends with epoxidized natural rubber: unraveling the structure-property relationship ” published in Materials 2025, 18(17), 4040; https://doi.org/10.3390/ma18174040. This dataset contains supplementary experimental data associated with the study on environmentally friendly polymer blends based on bio-based polyesters poly(ethylene 2,5-furanoate) (PEF) and poly(butylene 2,5-furanoate) (PBF) modified with epoxidized natural rubber (epNR). The materials support the research in which two series of polyester/epNR blends were prepared and analyzed in order to evaluate their physicochemical, thermal, and mechanical properties. The uploaded files include raw and processed data obtained from Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and tensile mechanical tests. The files complement the results reported in the associated publication and are provided to support transparency, reproducibility, and further research on sustainable bio-based polyester materials and their modification with elastomeric additives.