Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties
2022
Autori
Pergal, Marija V.Ostojić, Sanja
Steinhart, Miloš
Stefanović, Ivan S.
Pezo, Lato
Spirkova, Milena
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Thermoplastic poly(urethane-siloxane)/organoclay nanocomposites (TPU NCs) with different hard segment content (20-55 wt. %) were prepared by in situ polymerization in the presence of organically modified montmorillonite as a nanofiller (Cloisite 30B; 1 wt. %). Hydroxyl-terminated ethoxypropyl-poly(dimethylsiloxane) was used as soft segment, while 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol were the hard segment components. The study of the influence of the hard segment content on the functional properties of TPU NCs was performed by Fourier transform infrared (FTIR) spectroscopy, X-ray diffractometry (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), dynamic mechanical thermal analyses (DMTA), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), water contact angle and water absorption tests. The results revealed that TPU NCs with the increasing hard segment content exhibit higher values of degree of microphase separation, melting... temperature of the hard segments, degree of crystallinity, storage modulus (except for TPU NC-55), but lower thermal stability and hydrophobicity. TPU NC films were hydrophobic and their free surface energy was in the range from 17.7 to 24.9 mJ m(-2). This work highlights how the composition of TPU NCs would affect their functional properties and provide an additional composition intended for designing advanced TPU NC materials for special biomedical applications.
Ključne reči:
thermal performance / surface properties / polyurethane / degree of microphase separation / composition-dependent properties / clay nanofillerIzvor:
Journal of the Serbian Chemical Society, 2022, 87, 10, 1203-1218Izdavač:
- Srpsko hemijsko društvo, Beograd
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200026 (Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju - IHTM) (RS-MESTD-inst-2020-200026)
- Czech Science Foundation (Grant Agency of the Czech Republic) [18-03932S]
DOI: 10.2298/JSC220223036P
ISSN: 0352-5139
WoS: 000830542400001
Scopus: 2-s2.0-85143403778
Institucija/grupa
Institut za opštu i fizičku hemijuTY - JOUR AU - Pergal, Marija V. AU - Ostojić, Sanja AU - Steinhart, Miloš AU - Stefanović, Ivan S. AU - Pezo, Lato AU - Spirkova, Milena PY - 2022 UR - https://riofh.iofh.bg.ac.rs/handle/123456789/948 AB - Thermoplastic poly(urethane-siloxane)/organoclay nanocomposites (TPU NCs) with different hard segment content (20-55 wt. %) were prepared by in situ polymerization in the presence of organically modified montmorillonite as a nanofiller (Cloisite 30B; 1 wt. %). Hydroxyl-terminated ethoxypropyl-poly(dimethylsiloxane) was used as soft segment, while 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol were the hard segment components. The study of the influence of the hard segment content on the functional properties of TPU NCs was performed by Fourier transform infrared (FTIR) spectroscopy, X-ray diffractometry (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), dynamic mechanical thermal analyses (DMTA), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), water contact angle and water absorption tests. The results revealed that TPU NCs with the increasing hard segment content exhibit higher values of degree of microphase separation, melting temperature of the hard segments, degree of crystallinity, storage modulus (except for TPU NC-55), but lower thermal stability and hydrophobicity. TPU NC films were hydrophobic and their free surface energy was in the range from 17.7 to 24.9 mJ m(-2). This work highlights how the composition of TPU NCs would affect their functional properties and provide an additional composition intended for designing advanced TPU NC materials for special biomedical applications. PB - Srpsko hemijsko društvo, Beograd T2 - Journal of the Serbian Chemical Society T1 - Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties EP - 1218 IS - 10 SP - 1203 VL - 87 DO - 10.2298/JSC220223036P UR - conv_1028 ER -
@article{ author = "Pergal, Marija V. and Ostojić, Sanja and Steinhart, Miloš and Stefanović, Ivan S. and Pezo, Lato and Spirkova, Milena", year = "2022", abstract = "Thermoplastic poly(urethane-siloxane)/organoclay nanocomposites (TPU NCs) with different hard segment content (20-55 wt. %) were prepared by in situ polymerization in the presence of organically modified montmorillonite as a nanofiller (Cloisite 30B; 1 wt. %). Hydroxyl-terminated ethoxypropyl-poly(dimethylsiloxane) was used as soft segment, while 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol were the hard segment components. The study of the influence of the hard segment content on the functional properties of TPU NCs was performed by Fourier transform infrared (FTIR) spectroscopy, X-ray diffractometry (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), dynamic mechanical thermal analyses (DMTA), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), water contact angle and water absorption tests. The results revealed that TPU NCs with the increasing hard segment content exhibit higher values of degree of microphase separation, melting temperature of the hard segments, degree of crystallinity, storage modulus (except for TPU NC-55), but lower thermal stability and hydrophobicity. TPU NC films were hydrophobic and their free surface energy was in the range from 17.7 to 24.9 mJ m(-2). This work highlights how the composition of TPU NCs would affect their functional properties and provide an additional composition intended for designing advanced TPU NC materials for special biomedical applications.", publisher = "Srpsko hemijsko društvo, Beograd", journal = "Journal of the Serbian Chemical Society", title = "Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties", pages = "1218-1203", number = "10", volume = "87", doi = "10.2298/JSC220223036P", url = "conv_1028" }
Pergal, M. V., Ostojić, S., Steinhart, M., Stefanović, I. S., Pezo, L.,& Spirkova, M.. (2022). Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties. in Journal of the Serbian Chemical Society Srpsko hemijsko društvo, Beograd., 87(10), 1203-1218. https://doi.org/10.2298/JSC220223036P conv_1028
Pergal MV, Ostojić S, Steinhart M, Stefanović IS, Pezo L, Spirkova M. Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties. in Journal of the Serbian Chemical Society. 2022;87(10):1203-1218. doi:10.2298/JSC220223036P conv_1028 .
Pergal, Marija V., Ostojić, Sanja, Steinhart, Miloš, Stefanović, Ivan S., Pezo, Lato, Spirkova, Milena, "Nanocomposites made from thermoplastic linear poly(urethane-siloxane) and organoclay: Composition impact on the properties" in Journal of the Serbian Chemical Society, 87, no. 10 (2022):1203-1218, https://doi.org/10.2298/JSC220223036P ., conv_1028 .