Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation
Samo za registrovane korisnike
2013
Autori
Pergal, MarijaDžunuzović, Jasna
Poreba, Rafal
Ostojić, Sanja
Radulović, Aleksandra
Spirkova, Milena
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Poly(urethane-siloxane) networks based on hydroxyethoxy propyl terminated poly(dimethylsiloxane) (PDMS) as the soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and two hyperbranched polyesters with different core as the hard segments were characterized by swelling experiments, thermal analyses (DSC and TG), thermomechanical analysis (DMTA), X-ray scattering studies, SEM and AFM analyses, water contact angle and water absorption measurements, as well as surface free energy determination. From these studies, structure-property relationships were elucidated. Hyperbranched polyesters based on 2,2-bis(hydroxymethyl)propionic acid and ethoxylated pentaerythritol or di-trimethylolpropane as core (BH-40 and HBP-4) were used as crosslinkers for the samples of different series. Both series are composed of samples having different PDMS (i.e., soft segment) content. The crosslinking density and extent of hydrogen bonding showed an influence on the polyurethane (PU) properties. It was fou...nd that higher crosslinking density and better thermal stability of PUs based on BH-40 compared to HBP-4 based PUs are due to the less dense structure of BH-40. DMTA experiments revealed that the networks exhibit two glass transition temperatures, of the soft and hard segments, and one secondary relaxation process. The crosslinking density and extent of the microphase separation increased and thermomechanical properties were improved with decreasing content of PDMS. With increasing PDMS content, the surface of the polyurethane networks became more hydrophobic, the surface free energy decreased and thermal stability was improved. The obtained results revealed that synthesized PUs have good thermal and thermomechanical properties, which can be tailored for the potential use in the coating technology by changing the type of hyperbranched polyester or PDMS content.
Ključne reči:
Poly(urethane-siloxane) films / Hyperbranched polyester / Polysiloxane / Crosslinking density / Structure property relationshipIzvor:
Progress in Organic Coatings, 2013, 76, 4, 743-756Izdavač:
- Elsevier Science Sa, Lausanne
Finansiranje / projekti:
- Sinteza i karakterizacija novih funkcionalnih polimera i polimernih nanokompozita (RS-MESTD-Basic Research (BR or ON)-172062)
- Czech Science Foundation (GACR) - P108/10/0195
DOI: 10.1016/j.porgcoat.2013.01.007
ISSN: 0300-9440
WoS: 000316425000031
Scopus: 2-s2.0-84874107725
Institucija/grupa
IHTMTY - JOUR AU - Pergal, Marija AU - Džunuzović, Jasna AU - Poreba, Rafal AU - Ostojić, Sanja AU - Radulović, Aleksandra AU - Spirkova, Milena PY - 2013 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1283 AB - Poly(urethane-siloxane) networks based on hydroxyethoxy propyl terminated poly(dimethylsiloxane) (PDMS) as the soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and two hyperbranched polyesters with different core as the hard segments were characterized by swelling experiments, thermal analyses (DSC and TG), thermomechanical analysis (DMTA), X-ray scattering studies, SEM and AFM analyses, water contact angle and water absorption measurements, as well as surface free energy determination. From these studies, structure-property relationships were elucidated. Hyperbranched polyesters based on 2,2-bis(hydroxymethyl)propionic acid and ethoxylated pentaerythritol or di-trimethylolpropane as core (BH-40 and HBP-4) were used as crosslinkers for the samples of different series. Both series are composed of samples having different PDMS (i.e., soft segment) content. The crosslinking density and extent of hydrogen bonding showed an influence on the polyurethane (PU) properties. It was found that higher crosslinking density and better thermal stability of PUs based on BH-40 compared to HBP-4 based PUs are due to the less dense structure of BH-40. DMTA experiments revealed that the networks exhibit two glass transition temperatures, of the soft and hard segments, and one secondary relaxation process. The crosslinking density and extent of the microphase separation increased and thermomechanical properties were improved with decreasing content of PDMS. With increasing PDMS content, the surface of the polyurethane networks became more hydrophobic, the surface free energy decreased and thermal stability was improved. The obtained results revealed that synthesized PUs have good thermal and thermomechanical properties, which can be tailored for the potential use in the coating technology by changing the type of hyperbranched polyester or PDMS content. PB - Elsevier Science Sa, Lausanne T2 - Progress in Organic Coatings T1 - Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation VL - 76 IS - 4 SP - 743 EP - 756 DO - 10.1016/j.porgcoat.2013.01.007 ER -
@article{ author = "Pergal, Marija and Džunuzović, Jasna and Poreba, Rafal and Ostojić, Sanja and Radulović, Aleksandra and Spirkova, Milena", year = "2013", abstract = "Poly(urethane-siloxane) networks based on hydroxyethoxy propyl terminated poly(dimethylsiloxane) (PDMS) as the soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and two hyperbranched polyesters with different core as the hard segments were characterized by swelling experiments, thermal analyses (DSC and TG), thermomechanical analysis (DMTA), X-ray scattering studies, SEM and AFM analyses, water contact angle and water absorption measurements, as well as surface free energy determination. From these studies, structure-property relationships were elucidated. Hyperbranched polyesters based on 2,2-bis(hydroxymethyl)propionic acid and ethoxylated pentaerythritol or di-trimethylolpropane as core (BH-40 and HBP-4) were used as crosslinkers for the samples of different series. Both series are composed of samples having different PDMS (i.e., soft segment) content. The crosslinking density and extent of hydrogen bonding showed an influence on the polyurethane (PU) properties. It was found that higher crosslinking density and better thermal stability of PUs based on BH-40 compared to HBP-4 based PUs are due to the less dense structure of BH-40. DMTA experiments revealed that the networks exhibit two glass transition temperatures, of the soft and hard segments, and one secondary relaxation process. The crosslinking density and extent of the microphase separation increased and thermomechanical properties were improved with decreasing content of PDMS. With increasing PDMS content, the surface of the polyurethane networks became more hydrophobic, the surface free energy decreased and thermal stability was improved. The obtained results revealed that synthesized PUs have good thermal and thermomechanical properties, which can be tailored for the potential use in the coating technology by changing the type of hyperbranched polyester or PDMS content.", publisher = "Elsevier Science Sa, Lausanne", journal = "Progress in Organic Coatings", title = "Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation", volume = "76", number = "4", pages = "743-756", doi = "10.1016/j.porgcoat.2013.01.007" }
Pergal, M., Džunuzović, J., Poreba, R., Ostojić, S., Radulović, A.,& Spirkova, M.. (2013). Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation. in Progress in Organic Coatings Elsevier Science Sa, Lausanne., 76(4), 743-756. https://doi.org/10.1016/j.porgcoat.2013.01.007
Pergal M, Džunuzović J, Poreba R, Ostojić S, Radulović A, Spirkova M. Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation. in Progress in Organic Coatings. 2013;76(4):743-756. doi:10.1016/j.porgcoat.2013.01.007 .
Pergal, Marija, Džunuzović, Jasna, Poreba, Rafal, Ostojić, Sanja, Radulović, Aleksandra, Spirkova, Milena, "Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation" in Progress in Organic Coatings, 76, no. 4 (2013):743-756, https://doi.org/10.1016/j.porgcoat.2013.01.007 . .