147119 20260217205535.0 doi 10.1016/j.ijbiomac.2024.137906 sideral 140982 ART-2024-140982 eng Wongphan, Phanwipa Tailoring the morphology and antibacterial activity of PBAT and thermoplastic cassava starch blown films with phosphate derivatives 2024 Access copy available to the general public Unrestricted Phosphate derivatives contain a high number of reactive groups that interact functionally with various polymers. Tetrasodium pyrophosphate (Na₄P₂O₇), sodium tripolyphosphate (Na₅P₃O₁₀), and sodium hexametaphosphate (Na₆(PO₃)₆) were incorporated into bioplastic polybutylene-adipate-terephthalate (PBAT) blended with thermoplastic cassava starch (TPS) in blown films. Their physicochemical, morphological, thermal, and antimicrobial properties were investigated. PBAT/TPS blended films were compounded via blown film extrusion to produce functional packaging. Infrared spectra indicated starch modification through the disruption of anhydroglucose monomer units, analyzed by ATR-FTIR, providing a more amorphous fraction and altering the properties of the films. PBAT/TPS films containing phosphate compounds exhibited non-homogeneous structures, with dispersed clumps within the film matrices that decreased tensile strength. The incorporation of phosphate compounds modified the storage modulus and relaxation temperature of PBAT/TPS films, influencing molecular mobility, decreasing heat transfer efficiency in seal strength, and enhancing stiffness due to starch disruption and interaction between the phosphate compound and the PBAT/TPS matrix. Wettability and permeability of PBAT/TPS films were modified by changes in polymer structure. info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 8.5 2024 BIOCHEMISTRY & MOLECULAR BIOLOGY 29 / 320 = 0.091 2024 Q1 T1 POLYMER SCIENCE 6 / 94 = 0.064 2024 Q1 T1 CHEMISTRY, APPLIED 8 / 76 = 0.105 2024 Q1 T1 1.285 2024 Biochemistry 2024 Q1 Biomaterials 2024 Q1 Food Science 2024 Q1 Molecular Biology 2024 Q2 Structural Biology 2024 Q2 10.3 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Nerín, Cristina Universidad de Zaragoza (orcid)0000-0003-2685-5739 Harnkarnsujarit, Nathdanai 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 283 (2024), 137906 Int. j. biol. macromol. International journal of biological macromolecules 0141-8130 7259029 http://zaguan.unizar.es/record/147119/files/texto_completo.pdf Versión publicada 2712681 http://zaguan.unizar.es/record/147119/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:147119 articulos driver 2026-02-17-20:34:16 ARTICLE