Polyurethanes Crosslinked with Poly(vinyl alcohol) as a Slowly-Degradable and Hydrophilic Materials of Potential Use in Regenerative Medicine

Materials
J Kucinska-Lipka

Abstract

Novel, slowly-degradable and hydrophilic materials with proper mechanical properties and surface characteristics are in great demand within the biomedical field. In this paper, the design, synthesis, and characterization of polyurethanes (PUR) crosslinked with poly(vinyl alcohol) (PVA) as a new proposition for regenerative medicine is described. PVA-crosslinked PURs were synthesized by a two-step polymerization performed in a solvent (dimethylsulfoxide, DMSO). The raw materials used for the synthesis of PVA-crosslinked PURs were poly(ε-caprolactone) (PCL), 1,6-hexamethylene diisocyanate (HDI), and PVA as a crosslinking agent. The obtained materials were studied towards their physicochemical, mechanical, and biological performance. The tests revealed contact angle of the materials surface between 38-47° and tensile strength in the range of 41-52 MPa. Mechanical characteristics of the obtained PURs was close to the characteristics of native human bone such as the cortical bone (TSb= 51-151 MPa) or the cancellous bone (TSb= 10-20 MPa). The obtained PVA-crosslinked PURs did not show significant progress of degradation after 3 months of incubation in a phosphate-buffered saline (PBS). Accordingly, the obtained materials may behave s...Continue Reading

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Citations

Dec 2, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Chandravati YadavPradip K Maji
Jan 6, 2022·Macromolecular Bioscience·María I Alvarez EchazúMartín F Desimone

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Methods Mentioned

BETA
infrared spectroscopy
optical microscopy
Scanning
X-ray
ELISA

Software Mentioned

Essential FTIR® Spectroscopy Toolbox
Origin Pro

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