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Polymers 2018, 10(11), 1292; https://doi.org/10.3390/polym10111292

Synthesis and Properties of Novel Polyurethanes Containing Long-Segment Fluorinated Chain Extenders

1
Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
2
Department of Materials Science and Engineering, Vanung University, Jongli, Taoyuan 32061, Taiwan
3
R&D Center for Membrane Technology, Department of Chemical Engineering, Chung Yuan University, Chungli District, Taoyuan 32023, Taiwan
4
Department of Fashion Business Administration, LEE-MING Institute of Technology, No. 22, Sec. 3, Tailin. Rd., New Taipei 24305, Taiwan
*
Authors to whom correspondence should be addressed.
Received: 30 October 2018 / Revised: 19 November 2018 / Accepted: 19 November 2018 / Published: 21 November 2018
(This article belongs to the Special Issue Functional Polyurethanes)
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Abstract

In this study, novel biodegradable long-segment fluorine-containing polyurethane (PU) was synthesized using 4,4′-diphenylmethane diisocyanate (MDI) and 1H,1H,10H,10H-perfluor-1,10-decanediol (PFD) as hard segment, and polycaprolactone diol (PCL) as a biodegradable soft segment. Nuclear magnetic resonance (NMR) was used to perform 1H NMR, 19F NMR, 19F–19F COSY, 1H–19F COSY, and HMBC analyses on the PFD/PU structures. The results, together with those from Fourier transform infrared spectroscopy (FTIR), verified that the PFD/PUs had been successfully synthesized. Additionally, the soft segment and PFD were changed, after which FTIR and XPS peak-differentiation-imitating analyses were employed to examine the relationship of the hydrogen bonding reaction between the PFD chain extender and PU. Subsequently, atomic force microscopy was used to investigate the changes in the microphase structure between the PFD chain extender and PU, after which the effects of the thermal properties between them were investigated through thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis. Finally, the effects of the PFD chain extender on the mechanical properties of the PU were investigated through a tensile strength test. View Full-Text
Keywords: fluorinated polyurethanes; chain extender; curve fitting technique; nuclear magnetic resonance; hydrogen bond fluorinated polyurethanes; chain extender; curve fitting technique; nuclear magnetic resonance; hydrogen bond
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Li, J.-W.; Lee, H.-T.; Tsai, H.-A.; Suen, M.-C.; Chiu, C.-W. Synthesis and Properties of Novel Polyurethanes Containing Long-Segment Fluorinated Chain Extenders. Polymers 2018, 10, 1292.

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