Search results for "Bio-based polymer systems"

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Biopolyester-based systems containing naturally occurring compounds with enhanced thermooxidative stability

2016

Background This work presents a sustainable approach for the stabilization of polylactic acid (PLA) against thermo-oxidative aging. Methods Naturally occurring phenolic and polyphenolic compounds, such as ferulic acid (FerAc), vanillic acid (VanAc), quercetin (Querc) and vitamin E (VitE), were introduced into PLA. Results The preliminary characterization of the systems formulated containing different amounts of natural stabilizers showed that all compounds used acted as plasticizers, leading to a decrease in rheological functions with respect to neat PLA, without significantly modifying the crystallinity of the raw material. The study of the thermo-oxidative behavior of neat PLA and PLA/nat…

Hot TemperatureCoumaric AcidsPolyestersBiophysicsBiomedical EngineeringBioengineering02 engineering and technologyOxidative phosphorylationNaturally occurring stabilizers010402 general chemistryCoumaric acid01 natural sciencesPolylactic acidBiomaterialschemistry.chemical_compoundPolylactic acidDifferential scanning calorimetryVanillic acidthermo-oxidative stabilityOrganic chemistryVitamin EBio-based polymer systems; Differential scanning calorimetry; Naturally occurring stabilizers; Polylactic acid; Thermo-oxidation; Coumaric Acids; Hot Temperature; Oxidation-Reduction; Polyesters; Quercetin; Vanillic Acid; Vitamin E; Biophysics; Bioengineering; Biomaterials; Biomedical EngineeringVanillic AcidChemistryOxidation reductionGeneral MedicineBio-based polymer systems021001 nanoscience & nanotechnologyThermo-oxidation0104 chemical sciencesPolyesterPolilactic acidPolyphenolQuercetin0210 nano-technologyOxidation-Reductionnatural stabilizer
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