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2,5-furandicarboxylic Acid - Springer Nature

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Last Updated: 16 April 2022

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Tuning the thermal and mechanical properties of poly(vinyl alcohol) with 2,5-furandicarboxylic acid acting as a biobased crosslinking agent

PVA's thermal stability was greatly enhanced, particularly at low FDCA levels of 1 and 5%, where degradation maximums occurred at 354 and 371 °C, respectively, to 267 °C for unmodified PVA. The effect of ester crosslinks on the modified products' water absorption characteristics were investigated by swelling degree analysis. Thermal gravimetric analysis/differential thermal analysis (TPA) results indicated that the improvement in thermal stability of the obtained products was confirmed by thermal gravimetric analysis/differential thermal analysis, which showed that thermal stability was ideal for low concentrations of FDCA, i. e. , 1 and 5%, where degradation maximums occurred at 354 and 371 °C, relative to 267 °C for unmodified PVA. When compared to untreated PVA, the mechanical properties of the products were also investigated by tensile testing, where the tensile strength of the crosslinked PVA using 5% FDCA doubled.

Source link: https://doi.org/10.1038/s41428-021-00583-y


Copper-manganese oxide for highly selective oxidation of 5-hydroxymethylfurfural to bio-monomer 2, 5-furandicarboxylic acid

The co-precipitation technique was used to prepare 5-hydroxymethylfurfural's catalytic selective oxidation of 5-hydroxymethylfurfural into 2,5-furandicarboxylic acid, and Spinel copper-manganese oxide catalysts were prepared. The CuMn_2O_4 had superior catalytic results in HMF selective oxidation reaction, according to the experimental findings. Mechanism tests show that Mn3+ has a significant effect on catalytic oxidation, and the synergistic interaction between Mn and Cu enables the mobility of oxygen, thus increasing the catalytic capacity.

Source link: https://doi.org/10.1007/s13399-021-02143-z


Synthesis of esters derived from 2,5-furandicarboxylic acid and study of its plasticizing effects on poly(lactic acid)

This research explores the synthesis of three esters from 2,5-furandicarboxylic acid with various alcohols to a one-pot reaction by acid catalysis to evaluate them as biobased plasticizers for poly. The chemical structure of the synthesized plasticizers revealed by a 1H-NMR and FTIR analysis: dibutyl furan-2,5-dicarboxylate, di furan-2,5-dicarboxylate, and didodecyl furan-2,5-dicarboxylate; ethyl furan-2,5-dicarboxylate and doodecyl furan-2,5-dicarboxyl furan-2, dibutyl furan molecules revealed by the 1H-dicarboxyl furan FTIR matricyl furan-2, dibutyl furan-dicarboxylate and do di furan-2, di furan-2,5-dicarboxylate and di furan-2,5-dicarboxylate and doo furan-2,5-dicarboxylate and dido-dicarboxylate dicarboxylate and didodylate and didodecylate and dido-dicarboxylate ylate Due to the ease of these low weight plasticizers' ability to mix with PLA, which also raised the rate of crystallization, the glass transition temperature, cold crystallization temperature, and melting temperature were reduced in clarity. Plasticizers with lower molecular weight, according to the DMA's findings, all the plasticizers investigated reduced PLA's T_g of PLA, with significant reductions for plasticizers with the lowest molecular weight. DMBF demonstrated higher promise as a "green" plasticizer for PLA, followed by DBF to produce packaging films.

Source link: https://doi.org/10.1007/s10965-022-02914-w

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions