Influence of Starch on the Structure–Properties Relationship in Polyethylene Glycol/Polycaprolactone Diol Polyurethanes
Open Access
- 4 August 2022
- Vol. 14 (15), 3184
- https://doi.org/10.3390/polym14153184
Abstract
Improvements in the antithrombogenicity activity of biomaterials for cardiovascular applications are necessary to meet the demand for vascular grafts in the world. Zwitterionic compounds tend to be used due to their anti-fouling properties, which reduce platelet adhesions and protein absorptions. Therefore, in this research, potato starch (AL-N) and zwitterionic starch (AL-Z) (obtained by Williamson etherification) were included as fillers in polyurethane (PU) matrices from polycaprolactone diol (PCL), polyethylene glycol (PEG), pentaerythritol (PE) and isophorone diisocyanate (IPDI) in order to study their effect in terms of their physicochemical, mechanical and thermal properties. We conducted our evaluation using attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), contact angle analysis, swelling behavior, thermogravimetric analysis (TGA), tensile/strain analysis, scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (SEM-EDS), dynamic mechanic analysis (DMA), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). The results showed that AL-N and AL-Z modified these properties, where AL-N improved tensile strength, and AL-Z increased the hydrophilicity of polyurethanes matrices; additionally, AL-N had interactions with the soft segments, and AL-Z had interactions with the hard segments. Finally, both fillers reduced the degree of crystallinity and did not affect the thermal stability of polyurethanes.Funding Information
- University of La Sabana (ING-176-2016)
- Minister of Science, Technology, and Innovation of the Republic of Colombia (CT-186-2019)
This publication has 70 references indexed in Scilit:
- Electrospun scaffolds for tissue engineering of vascular graftsActa Biomaterialia, 2014
- Polyurethaneurea–silica nanocomposites: Preparation and investigation of the structure–property behaviorPolymer, 2013
- Adipose-derived stem cells combined with Neuregulin-1 delivery systems for heart tissue engineeringEuropean Journal of Pharmaceutics and Biopharmaceutics, 2013
- Synthesis and Characterization of Polyethylene Glycol Mediated Silver Nanoparticles by the Green MethodInternational Journal of Molecular Sciences, 2012
- Synthesis and water-swelling of thermo-responsive poly(ester urethane)s containing poly(ε-caprolactone), poly(ethylene glycol) and poly(propylene glycol)Biomaterials, 2008
- Effect of acetylation on the properties of corn starchFood Chemistry, 2008
- Synthesis and thermal degradation of poly(n‐butylisocyanate) modified by 1,3‐propanesultoneJournal of Applied Polymer Science, 2003
- Structure-property relationship of starch-filled chain-extended polyurethanesJournal of Applied Polymer Science, 2003
- Macro- and Microfillers as Reinforcing Agents for Polyurethane ElastomersJournal of Elastomers & Plastics, 2003
- An analysis of phase separation kinetics of model polyurethanesMacromolecules, 1989