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- W2030729417 abstract "Well architectured polyurethanes containing fluorine are expected to be applied in medical devices as well as other fields. A telechelic polyurethane end-capped with perfluoropolyether segments was prepared from polyether glycol as a soft segment, 4, 4′-methylene-bis-(phenylisocyanate), and monofunctional perfluorinated oligomer. The telechelic polyurethane was studied by Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), contact angle and atomic force microscopy (AFM). XPS results indicated that the surface of the fluorine containing polyurethane was enriched with fluorine component. It exhibited a hydrophobic property with a water contact angle of 113°. The polyurethane terminated with perfluoropolyether segments showed a better thermal stability. A mechanism was proposed to explain thermal decomposition of polyurethanes. DSC results suggested that the tail-like perfluoropolyether segments would disrupt main chain packing, then raise crystallization potential barrier, and the perfluoropolyether segments did not affect the bulk microphase-separated structure." @default.
- W2030729417 created "2016-06-24" @default.
- W2030729417 creator A5001391564 @default.
- W2030729417 creator A5048367149 @default.
- W2030729417 date "2010-02-01" @default.
- W2030729417 modified "2023-10-07" @default.
- W2030729417 title "Study of telechelic polyurethane with perfluoropolyether tails" @default.
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- W2030729417 doi "https://doi.org/10.1016/j.polymer.2009.12.033" @default.
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