Počet záznamů: 1
Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites
- 1.
SYSNO ASEP 0535552 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites Tvůrce(i) Pergal, M. V. (RS)
Brkljačić, J. (RS)
Tovilović-Kovačević, G. (RS)
Špírková, Milena (UMCH-V) RID, ORCID
Kodranov, I. D. (RS)
Manojlović, D. D. (RS)
Ostojić, S. (RS)
Knežević, N. Ž. (RS)Číslo článku 106049 Zdroj.dok. Progress in Organic Coatings. - : Elsevier - ISSN 0300-9440
Roč. 151, February (2021)Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova nanocomposite ; polyurethane network ; mesoporous silica nanoparticles Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science CEP GA18-03932S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000613600400006 EID SCOPUS 85097208646 DOI 10.1016/j.porgcoat.2020.106049 Anotace Novel polyurethane nanocomposite (PUN) materials containing different surface-functionalized mesoporous silica nanoparticles (MSNs) were prepared by in situ polymerization methodology. Polyurethane network was formed from poly(dimethylsiloxane)-based macrodiol (PDMS), 4,4′-methylenediphenyldiisocyanate (MDI), and hyperbranched polyester of the second pseudo-generation (BH-20, used as crosslinking agent). PU and PU/MSN nanocomposites contained equal ratios of soft PDMS and hard MDI-BH-20 segments. Non-functionalized and surface-functionalized (with 3-(trihydroxysilyl)propyl methylphosphonate (FOMSN) and 2-[methoxy(polyethyleneoxy)6−9propyl]trimethoxysilane (PEGMSN)) MSNs were used as the nanofillers at a concentration of 1 wt%. Prepared materials were characterized by Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical thermal analyses (DMTA), nanoindentation, equilibrium swelling and water absorption measurements. Characteristics of the prepared PUNs when in contact with a biological environment were assessed through testing their biocompatibility, protein adsorption and adhesion of endothelial cells. The favourable influence of MSNs on the physico-chemical and biological characteristics of these novel PUN materials was identified, which evidences their vast applicability potential as coatings for medical devices and implants. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2022 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0300944020312601?via%3Dihub
Počet záznamů: 1