20–23 Sept 2023
Metropol Lake Resort, Ohrid
Europe/Skopje timezone

Viscoelastic properties of polycaprolactone based polyurethane networks

Not scheduled
20m
Metropol Lake Resort, Ohrid

Metropol Lake Resort, Ohrid

Poster presentation

Speaker

Ivan Stefanović (University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute)

Description

Polyurethane networks (PUNs) based on hyperbranched polyesters (HBP), polycaprolactone (PCL), and isophorone diisocyanate were prepared.1,2 PUNs consist of different content of hard (HS) and soft segments (SS). The impact of the HBP and the content of the SS on the structure and viscoelastic properties of the prepared PUNs were investigated. XRD analysis confirmed that PUNs with lower SS content were amorphous, while samples with the highest SS content had a certain degree of crystallinity. Viscoelastic properties of PUNs depend on the SS content and used HBP. These PUNs have potential application as coatings.

Acknowledgements: This research has been financially supported by the Ministry of Science, Technological Development and Innovation of Republic of Serbia (Contact No: 451-03-47/2023-01/200026 and 451-03-47/2023-01/200135).

References
1. Džunuzović, J. V.; Stefanović, I. S.; Džunuzović, E. S.; Dapčević, A.; Šešlija, S. I.; Balanč, B. D.; Lama, G. C., Polyurethane networks based on polycaprolactone and hyperbranched polyester: Structural, thermal and mechanical investigation, Prog. Org. Coat. 2019, 137, 105305. DOI: 10.1016/j.porgcoat.2019.105305
2. Stefanović, I. S.; Džunuzović, J. V.; Džunuzović, E. S.; Stevanović, S.; Dapčević, A.; Savić, S. I.; Lama, G. C., The impact of the polycaprolactone content on the properties of polyurethane networks, Mater. Today Commun. 2023, 35, 105721. DOI: 10.1016/j.mtcomm.2023.105721

Primary author

Ivan Stefanović (University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute)

Co-authors

Prof. Enis Džunuzović (University of Belgrade, Faculty of Technology and Metallurgy, Serbia) Prof. Aleksandra Dapčević (University of Belgrade, Faculty of Technology and Metallurgy) Dr Bojana Marković (University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute of the Republic Serbia) Mrs Tamara Tadić (University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute of the Republic Serbia) Dr Sandra Bulatović (University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute of the Republic Serbia) Dr Jasna Džunuzović (University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National Institute of the Republic Serbia)

Presentation materials