The impact of the polycaprolactone content on the properties of polyurethane networks
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2023
Authors
Stefanović, Ivan S.Džunuzović, Jasna V.
Džunuzović, Enis S.
Stevanović, Sanja
Dapčević, Aleksandra
Savić, Sanja I.
Lama, Giuseppe C.
Article (Published version)
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The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separa...ted morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs.
Keywords:
Polyurethane network / Polycaprolactone / Hyperbranched polyester / Thermomechanical properties / Microphase separation / Swelling behaviorSource:
Materials Today Communications, 2023, 35, 105721-Publisher:
- Elsevier Ltd.
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-MESTD-inst-2020-200026)
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Stefanović, Ivan S. AU - Džunuzović, Jasna V. AU - Džunuzović, Enis S. AU - Stevanović, Sanja AU - Dapčević, Aleksandra AU - Savić, Sanja I. AU - Lama, Giuseppe C. PY - 2023 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5985 AB - The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separated morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs. PB - Elsevier Ltd. T2 - Materials Today Communications T1 - The impact of the polycaprolactone content on the properties of polyurethane networks SP - 105721 VL - 35 DO - 10.1016/j.mtcomm.2023.105721 ER -
@article{ author = "Stefanović, Ivan S. and Džunuzović, Jasna V. and Džunuzović, Enis S. and Stevanović, Sanja and Dapčević, Aleksandra and Savić, Sanja I. and Lama, Giuseppe C.", year = "2023", abstract = "The influence of soft segment (SS) content on the properties of novel polyurethane networks (PUNs), prepared by a two-step polymerization in a solvent mixture, was investigated in this work. Hyperbranched polyester of the third pseudo generation (BH-30) was used as a crosslinker, and together with isophorone diisocyanate (IPDI) was applied to build hard segments (HS) in PUNs. On the other hand, SS of the prepared PUNs are based on polycaprolactone (PCL). The content of SS in PUNs varied from 10 to 50 wt%. The structural, thermal and mechanical properties, swelling behavior, as well as morphology of PUNs, were explored by various experimental methods. Performed investigations have shown that the use of BH-30 led to the emergence of relatively high crosslinking density and good mechanical properties, and that all features of PUNs significantly depend on the SS content. Higher PCL content caused presence of certain crystallinity, better thermal stability, more pronounced microphase separated morphology, but also lower degree of hydrogen bonding, crosslinking density and storage modulus of the prepared PUNs. The obtained results have shown that the properties of PUNs can be easily varied and customized to different practical needs.", publisher = "Elsevier Ltd.", journal = "Materials Today Communications", title = "The impact of the polycaprolactone content on the properties of polyurethane networks", pages = "105721", volume = "35", doi = "10.1016/j.mtcomm.2023.105721" }
Stefanović, I. S., Džunuzović, J. V., Džunuzović, E. S., Stevanović, S., Dapčević, A., Savić, S. I.,& Lama, G. C.. (2023). The impact of the polycaprolactone content on the properties of polyurethane networks. in Materials Today Communications Elsevier Ltd.., 35, 105721. https://doi.org/10.1016/j.mtcomm.2023.105721
Stefanović IS, Džunuzović JV, Džunuzović ES, Stevanović S, Dapčević A, Savić SI, Lama GC. The impact of the polycaprolactone content on the properties of polyurethane networks. in Materials Today Communications. 2023;35:105721. doi:10.1016/j.mtcomm.2023.105721 .
Stefanović, Ivan S., Džunuzović, Jasna V., Džunuzović, Enis S., Stevanović, Sanja, Dapčević, Aleksandra, Savić, Sanja I., Lama, Giuseppe C., "The impact of the polycaprolactone content on the properties of polyurethane networks" in Materials Today Communications, 35 (2023):105721, https://doi.org/10.1016/j.mtcomm.2023.105721 . .