Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites
2021
Аутори:
Pergal, Marija V.Brkljačić, Jelena
Tovilović-Kovačević, Gordana
Špírkova, Milena
Kodranov, Igor D.
Manojlović, Dragan D.
Ostojić, Sanja
Knežević, Nikola Ž.
Тип документа:
Чланак у часопису (Објављена верзија)
,
© 2020 Elsevier B.V.
Метаподаци
Приказ свих података о документуАпстракт:
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.
Кључне речи:
Nanocomposite; Polyurethane network; Mesoporous silica nanoparticles; Composite characterization; Cell adhesion; CoatingsИзвор:
Progress in Organic Coatings, 2021, 151, 106049-Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200168 (Универзитет у Београду, Хемијски факултет) (RS-MESTD-inst-2020-200168)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200358 (BioSense институт) (RS-MESTD-inst-2020-200358)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200007 (Универзитет у Београду, Институт за биолошка истраживања 'Синиша Станковић') (RS-MESTD-inst-2020-200007)
- Ministry of Education, Science and Technological Development of the Republic of Serbia within Serbian-French Bilateral Project (337-00-8/2020-04)
- Grant Agency of the Czech Republic (18-03932S)
DOI: 10.1016/j.porgcoat.2020.106049
ISSN: 0300-9440