The process of photopolymerization of acrylated soybean oil-based epoxides investigated by positron annihilation lifetime spectroscopy

The lifetime spectra of positrons annihilating in polymer matrices based on acrylated epoxidized soybean oil (AESO) and a mixture with vanillin-dimethacrylate (VDM) were measured. The chemical structure of the polymer series AESO and AESO-VDM was investigated by NIR spectroscopy. The semi-empirical...

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Bibliographic Details
Published inChemical papers Vol. 77; no. 12; pp. 7257 - 7261
Main Authors Královič, David Pavel, Cifraničová, Katarína, Šauša, Ondrej, Švajdlenková, Helena, Kavetskyy, Taras, Kiv, Arnold
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.12.2023
Springer Nature B.V
Subjects
Biochemistry
Biosensors
Biotechnology
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Crosslinking
Electrical measurement
Industrial Chemistry/Chemical Engineering
Materials Science
Medicinal Chemistry
Original Paper
Photoinitiators
Photopolymerization
Polyimide resins
Polymers
Positron annihilation
Positrons
Quantum mechanics
Soybean oil
Spectroscopy
Vanillin
Soybean oil
Epoxides
Positron annihilation lifetime spectroscopy
NIR spectroscopy
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Summary:The lifetime spectra of positrons annihilating in polymer matrices based on acrylated epoxidized soybean oil (AESO) and a mixture with vanillin-dimethacrylate (VDM) were measured. The chemical structure of the polymer series AESO and AESO-VDM was investigated by NIR spectroscopy. The semi-empirical quantum mechanical Tao-Eldrup model was used to estimate the sizes of individual free volumes in these matrices. Investigation of free-volume properties of polymer matrices based on natural oils, which are intended for the construction of amperometric biosensors, allows a better understanding of the relationship between the crosslinking densities of the matrices, i.e. microscopic characteristics, and the main operating parameters of the biosensors. The free volumes of the investigated matrices before, during and after the photopolymerization process were determined. The influence of vanillin-dimethacrylate (VDM) and photoinitiator (PI) on the final microstructural properties of the investigated matrices was evaluated.
ISSN:0366-6352
1336-9075
2585-7290
DOI:10.1007/s11696-022-02607-0