4.7 Article

Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites

Journal

PROGRESS IN ORGANIC COATINGS
Volume 151, Issue -, Pages -

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2020.106049

Keywords

Nanocomposite; Polyurethane network; Mesoporous silica nanoparticles; Composite characterization; Cell adhesion; Coatings

Funding

  1. Ministry of Education, Science and Technological Development of the Republic of Serbia within Serbian-French Bilateral Project [337-00-8/2020-04]
  2. Ministry of Foreign Affairs of the Republic of France
  3. Ministry of Education, Science and Technological Development [451-03-68/2020-14/200026, 45103-68/2020-14/200168, 451-03-68/2020-14/200358, 451-03-68/2020-14/200007]
  4. Czech Science Foundation [18-03932S]

Ask authors/readers for more resources

Novel polyurethane nanocomposite materials containing surface-functionalized mesoporous silica nanoparticles were prepared, showing favorable physico-chemical and biological characteristics for potential applications as coatings for medical devices and implants.
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)6-9-propyl]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.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available