The Effect of Introduction of Phenolic Antioxidants on the Thermal-Oxidative Stability and Gas Permeability of Poly(4-methyl-2-pentyne)

V. P. Makrushin; Макрушин В. П.; V. K. Chernikov; Черников В. К.; I. S. Levin; Левин И. С.; A. A. Kossov; Коссов А. А.; S. M. Matson; Матсон С. М.

doi:10.31857/S2218117223030070

The Effect of Introduction of Phenolic Antioxidants on the Thermal-Oxidative Stability and Gas Permeability of Poly(4-methyl-2-pentyne)

Авторлар: Makrushin V.¹, Chernikov V.¹, Levin I.¹, Kossov A.¹, Matson S.¹
Мекемелер:
1. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Шығарылым: Том 13, № 3 (2023)
Беттер: 172-180
Бөлім: Articles
URL: https://journals.rcsi.science/2218-1172/article/view/137998
DOI: https://doi.org/10.31857/S2218117223030070
EDN: https://elibrary.ru/ESQNZR
ID: 137998

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Аннотация
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Әдебиет тізімі
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Статистика

Аннотация

Abstract: In this work, we studied the thermal-oxidative stability and gas transport properties of poly(4-methyl-2-pentyne) (PMP) film samples with mixed configurational composition (50% cis-units) in the presence of phenolic antioxidants Irganox 1076, Irganox 1010, Vulkanox BHT and Rianox 1520, which differ in the nature and structure of the substituents on the benzene ring. Annealing of PMP films at 140°C showed that films with the addition of Irganox 1076 and Irganox 1010 retain their strength and stability of gas transport properties for at least 150 h of total heating after a moderate decrease in permeability (∼30%) in the first 48 h of heating. PMP films with Vulkanox BHT and Rianox 1520 after 48 h of heating at 140°C demonstrate an increase in gas permeability coefficients, indicating the onset of polymer degradation, and after 100 h of heating they are destroyed. The wide-angle X-ray diffraction of films with the most effective stabilizers Irganox 1076 and Irganox 1010 revealed a decrease in interchain distances after annealing, which indicates an increase in the packing density of macromolecules as a result of thermally activated relaxation.

Негізгі сөздер

poly(4-methyl-2-pentyne), polymeric membranes, gas permeability, thermal-oxidative stability, annealing

Әдебиет тізімі

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