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Controllable hydrolytic stability of novel fluorinated polyurethane films
A series of polyester-based and polyether-based polyurethane films with fluorinated side chains were synthesised in the study, and the chemical structure of these products was verified using the Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) techniques, nuclear magnetic resonance spectroscopy (NMR) and gel permeation chromatography (GPC). The hydrolysis of fluorinated polyurethane films was explored via immersion in deionised water at different temperatures, and corresponding hydrolysis process was detected by GPC, scanning electron microscopy (SEM), weighting and tensile tests.
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