Research output: Contribution to journal › Article › peer-review
Experimental and Simulation Study of Polylactide/Polyphenylene Oxide Composites: Microstructure, Mechanical and Gas Separation Properties. / Пулялина, Александра Юрьевна; Курындин, Иван Сергеевич; Полоцкая, Галина Андреевна; Мухин, Александр Евгеньевич; Ларин, Сергей Владимирович; Сапрыкина, Н. Н.; Зоолшоев, Зоолшо Фаросатшоевич; Файков, Илья Ильич; Мельникова, Софья Дмитриевна.
In: Journal of Applied Polymer Science, Vol. 142, No. 30, e57219, 10.08.2025.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Experimental and Simulation Study of Polylactide/Polyphenylene Oxide Composites: Microstructure, Mechanical and Gas Separation Properties
AU - Пулялина, Александра Юрьевна
AU - Курындин, Иван Сергеевич
AU - Полоцкая, Галина Андреевна
AU - Мухин, Александр Евгеньевич
AU - Ларин, Сергей Владимирович
AU - Сапрыкина, Н. Н.
AU - Зоолшоев, Зоолшо Фаросатшоевич
AU - Файков, Илья Ильич
AU - Мельникова, Софья Дмитриевна
PY - 2025/8/10
Y1 - 2025/8/10
N2 - Polylactide (PLA)/polyphenylene oxide (PPO) composites were prepared in a wide range of compositions by mixing solutions of PLA and PPO in chloroform and used to obtain dense thin films. It was found that the aggregates formed in solutions of PLA/PPO blends were more compact compared with those existing in solutions of individual macromolecules. The structural features of PLA/PPO composite films were studied using wide-angle X-ray diffraction analysis, scanning electron microscopy, thermogravimetric analysis, and estimated in comparison with the properties of pristine PPO and PLA films. Gas transport properties were determined by measuring H2, CO2, O2, and N2 permeability. Preparation of the PLA/PPO composites improved the properties of the initial polymers: gas permeability of PLA was increased, and the PPO selectivity was enhanced. It was revealed that composite PLA/PPO (30) exhibited the optimal transport properties. The molecular dynamics simulations of the PLA/PPO (30) blend were performed for a more detailed study of the effect of PPO introduced into the PLA matrix on the structure and properties of the composites. The obtained PLA/PPO composites were thermally stable and exhibited good mechanical properties: elevated strength (43–50 MPa) in combination with high rigidity (1600–1950 MPa).
AB - Polylactide (PLA)/polyphenylene oxide (PPO) composites were prepared in a wide range of compositions by mixing solutions of PLA and PPO in chloroform and used to obtain dense thin films. It was found that the aggregates formed in solutions of PLA/PPO blends were more compact compared with those existing in solutions of individual macromolecules. The structural features of PLA/PPO composite films were studied using wide-angle X-ray diffraction analysis, scanning electron microscopy, thermogravimetric analysis, and estimated in comparison with the properties of pristine PPO and PLA films. Gas transport properties were determined by measuring H2, CO2, O2, and N2 permeability. Preparation of the PLA/PPO composites improved the properties of the initial polymers: gas permeability of PLA was increased, and the PPO selectivity was enhanced. It was revealed that composite PLA/PPO (30) exhibited the optimal transport properties. The molecular dynamics simulations of the PLA/PPO (30) blend were performed for a more detailed study of the effect of PPO introduced into the PLA matrix on the structure and properties of the composites. The obtained PLA/PPO composites were thermally stable and exhibited good mechanical properties: elevated strength (43–50 MPa) in combination with high rigidity (1600–1950 MPa).
KW - films
KW - mechanical properties
KW - membranes
KW - structure-property relationships
UR - https://www.mendeley.com/catalogue/09af2e3b-8a2f-311e-a7b6-21236146ec0d/
U2 - 10.1002/app.57219
DO - 10.1002/app.57219
M3 - Article
VL - 142
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
IS - 30
M1 - e57219
ER -
ID: 136299297