21 research outputs found
Biobased poly(ethylene furanoate-:Co -ethylene succinate) copolyesters: Solid state structure, melting point depression and biodegradability
Novel, biobased poly(ethylene furanoate-co-ethylene succinate) copolyesters were successfully prepared by melt polycondensation and their solid state structure, melting point depression and biodegradability were evaluated in detail.</p
Thermal and structural response of in situ prepared biobased poly(ethylene 2,5-furan dicarboxylate) nanocomposites
Poly(ethylene 2,5-furan dicarboxylate) (PEF) is considered the biobased counterpart of the fossil based poly(ethylene terephthalate) for food packaging. In this research, PEF nanocomposites containing 2.5 wt% neat multi walled carbon nanotubes (MWCNTs), or functionalized MWCNTs or graphene oxide (GO), were in situ prepared by applying the melt polycondensation method. The nanocomposites showed faster crystallization rates compared to the pristine material as proved by both differential scanning calorimetry (DSC) and polarized light microscopy (PLM). The latter evidenced an increased nucleation density in nanocomposites, due to the nucleating efficiency of the fillers, resulting in smaller spherulite size. However, a slightly reduced thermal stability was revealed for the nanocomposites by thermog-ravimetric analysis (TGA), especially in the case of GO-containing samples. The solid structure of the materials was studied by performing real time X-ray diffraction (XRD) measurements. In neat PEF, beta-crystals were observed in the solvent treated sample, while alpha-crystals were formed on cooling from the melt or cold-crystallization. On the contrary, in the XRD patterns of the nanocomposites only peaks associated with the alpha-crystal phase were found. Last, but not least, the effect of recrystallization on the thermal behavior was evaluated by means of modulated temperature DSC (MDSC). (C) 2016 Elsevier Ltd. All rights reserved
Synthesis of the bio-based polyester poly(propylene 2,5-furan dicarboxylate). Comparison of thermal behavior and solid state structure with its terephthalate and naphthalate homologues
Polycaprolactone/multi-wall carbon nanotube nanocomposites prepared by in situ ring opening polymerization:Decomposition profiling using thermogravimetric analysis and analytical pyrolysis-gas chromatography/mass spectrometry
Evaluation of polyesters from renewable resources as alternatives to the current fossil-based polymers. Phase transitions of poly(butylene 2,5-furan-dicarboxylate)
Thermal degradation kinetics and decomposition mechanism of polyesters based on 2,5-furandicarboxylic acid and low molecular weight aliphatic diols
Furan-based polyesters from renewable resources:Crystallization and thermal degradation behavior of poly(hexamethylene 2,5-furan-dicarboxylate)
Synthesis, properties and thermal behavior of poly(decylene-2,5-furanoate):A biobased polyester from 2,5-furan dicarboxylic acid
International audienc
Synthesis, properties and thermal behavior of poly(decylene-2,5-furanoate):A biobased polyester from 2,5-furan dicarboxylic acid
International audienc