Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane)
2014
Аутори
Pergal, MarijaStefanović, Ivan
Gođevac, Dejan
Antić, Vesna
Milačić, Vesna
Ostojić, Sanja
Rogan, Jelena
Đonlagić, Jasna
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this study, the synthesis, structure and physical properties of two series of thermoplastic polyurethanes based on hydroxypropyl-terminated poly(dimethylsiloxane) (HP-PDMS) or hydroxyethoxypropyl-terminated poly(dimethylsiloxane) (EO-PDMS) as soft segments, and 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as hard segments were investigated. The polyurethanes were synthesized by two-step polyaddition in solution. The effects of the type and content of PDMS segments on the structure, thermal and surface properties of copolymers were studied by H-1-, C-13-nuclear magnetic resonance (NMR) spectroscopy and two-dimensional NMR spectroscopies (heteronuclear multiple bond correlation (HMBC) and rotating-frame nuclear Overhauser effect (ROESY)), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), wide-angle X-ray scattering (WAXS), scanning electron microscopy (SEM) and water contact angle and water absorption measurements.... Thermal properties investigated by DSC indicated that the presence of soft PDMS segments lowers the glass transition and melting temperatures of the hard phase as well as the degree of crystallinity. SEM analysis of the copolymers with a lower soft segment content confirmed the presence of spherulite superstructures, which arise from the crystallization of the hard segments. When compared with polyurethanes prepared from HP-PDMS, the copolymers synthesized from EO-PDMS with the same content of the soft segments had a higher degree of crystallinity, better thermal stability and a less hydrophobic surface. The obtained results showed that the synthesized polyurethanes had good thermal and surface properties, which could be further modified by changing the type or content of the soft segments.
Кључне речи:
thermoplastic polyurethanes / poly(dimethylsiloxane) / 2D NMR spectroscopy / thermal properties / surface propertiesИзвор:
Journal of the Serbian Chemical Society, 2014, 79, 7, 843-+Издавач:
- Srpsko hemijsko društvo, Beograd
Финансирање / пројекти:
- Синтеза и карактеризација нових функционалних полимера и полимерних нанокомпозита (RS-MESTD-Basic Research (BR or ON)-172062)
DOI: 10.2298/JSC130819149P
ISSN: 0352-5139
WoS: 000339931600008
Scopus: 2-s2.0-84920406211
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Pergal, Marija AU - Stefanović, Ivan AU - Gođevac, Dejan AU - Antić, Vesna AU - Milačić, Vesna AU - Ostojić, Sanja AU - Rogan, Jelena AU - Đonlagić, Jasna PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2692 AB - In this study, the synthesis, structure and physical properties of two series of thermoplastic polyurethanes based on hydroxypropyl-terminated poly(dimethylsiloxane) (HP-PDMS) or hydroxyethoxypropyl-terminated poly(dimethylsiloxane) (EO-PDMS) as soft segments, and 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as hard segments were investigated. The polyurethanes were synthesized by two-step polyaddition in solution. The effects of the type and content of PDMS segments on the structure, thermal and surface properties of copolymers were studied by H-1-, C-13-nuclear magnetic resonance (NMR) spectroscopy and two-dimensional NMR spectroscopies (heteronuclear multiple bond correlation (HMBC) and rotating-frame nuclear Overhauser effect (ROESY)), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), wide-angle X-ray scattering (WAXS), scanning electron microscopy (SEM) and water contact angle and water absorption measurements. Thermal properties investigated by DSC indicated that the presence of soft PDMS segments lowers the glass transition and melting temperatures of the hard phase as well as the degree of crystallinity. SEM analysis of the copolymers with a lower soft segment content confirmed the presence of spherulite superstructures, which arise from the crystallization of the hard segments. When compared with polyurethanes prepared from HP-PDMS, the copolymers synthesized from EO-PDMS with the same content of the soft segments had a higher degree of crystallinity, better thermal stability and a less hydrophobic surface. The obtained results showed that the synthesized polyurethanes had good thermal and surface properties, which could be further modified by changing the type or content of the soft segments. PB - Srpsko hemijsko društvo, Beograd T2 - Journal of the Serbian Chemical Society T1 - Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane) EP - + IS - 7 SP - 843 VL - 79 DO - 10.2298/JSC130819149P ER -
@article{ author = "Pergal, Marija and Stefanović, Ivan and Gođevac, Dejan and Antić, Vesna and Milačić, Vesna and Ostojić, Sanja and Rogan, Jelena and Đonlagić, Jasna", year = "2014", abstract = "In this study, the synthesis, structure and physical properties of two series of thermoplastic polyurethanes based on hydroxypropyl-terminated poly(dimethylsiloxane) (HP-PDMS) or hydroxyethoxypropyl-terminated poly(dimethylsiloxane) (EO-PDMS) as soft segments, and 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as hard segments were investigated. The polyurethanes were synthesized by two-step polyaddition in solution. The effects of the type and content of PDMS segments on the structure, thermal and surface properties of copolymers were studied by H-1-, C-13-nuclear magnetic resonance (NMR) spectroscopy and two-dimensional NMR spectroscopies (heteronuclear multiple bond correlation (HMBC) and rotating-frame nuclear Overhauser effect (ROESY)), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), wide-angle X-ray scattering (WAXS), scanning electron microscopy (SEM) and water contact angle and water absorption measurements. Thermal properties investigated by DSC indicated that the presence of soft PDMS segments lowers the glass transition and melting temperatures of the hard phase as well as the degree of crystallinity. SEM analysis of the copolymers with a lower soft segment content confirmed the presence of spherulite superstructures, which arise from the crystallization of the hard segments. When compared with polyurethanes prepared from HP-PDMS, the copolymers synthesized from EO-PDMS with the same content of the soft segments had a higher degree of crystallinity, better thermal stability and a less hydrophobic surface. The obtained results showed that the synthesized polyurethanes had good thermal and surface properties, which could be further modified by changing the type or content of the soft segments.", publisher = "Srpsko hemijsko društvo, Beograd", journal = "Journal of the Serbian Chemical Society", title = "Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane)", pages = "+-843", number = "7", volume = "79", doi = "10.2298/JSC130819149P" }
Pergal, M., Stefanović, I., Gođevac, D., Antić, V., Milačić, V., Ostojić, S., Rogan, J.,& Đonlagić, J.. (2014). Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane). in Journal of the Serbian Chemical Society Srpsko hemijsko društvo, Beograd., 79(7), 843-+. https://doi.org/10.2298/JSC130819149P
Pergal M, Stefanović I, Gođevac D, Antić V, Milačić V, Ostojić S, Rogan J, Đonlagić J. Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane). in Journal of the Serbian Chemical Society. 2014;79(7):843-+. doi:10.2298/JSC130819149P .
Pergal, Marija, Stefanović, Ivan, Gođevac, Dejan, Antić, Vesna, Milačić, Vesna, Ostojić, Sanja, Rogan, Jelena, Đonlagić, Jasna, "Structural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane)" in Journal of the Serbian Chemical Society, 79, no. 7 (2014):843-+, https://doi.org/10.2298/JSC130819149P . .