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Polymer Bulletin
Erschienen in: Polymer Bulletin 8/2017

24.12.2016 | Original Paper

Photoisomerization of waterborne polyurethane with side-chained phenylazonaphthalene group

verfasst von: Wei Sun, Yan Zheng, Xingyuan Zhang

Erschienen in: Polymer Bulletin | Ausgabe 8/2017

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Abstract

Novel waterborne polyurethane (WPU) with side-chained Phenylazonaphthalene group was prepared by step-growth addition polymerization between isophorone diisocyanate (IPDI), polytetramethylene ether glycol (PTMG), 2, 2-dimethylol propionic acid (DMPA) and a self-made azo diol, N,N-(2-hydroxyethyl)-4-phenylazo naphthylamine (HPN), as a chain extender to partially substitute for 1, 4-butanediol (BDO). 1H nuclear magnetic resonance spectra (1H NMR), Fourier transform infrared spectroscopy (FTIR) and Ultraviolet–Visible (UV–Vis) spectroscopy were used to research the properties of HPN and HPN-WPU. The WPU latex presented obvious trans–cis photoisomerization during UV radiation and the absorption wavelength of the HPN exhibited a blue shift after attached into polyurethane chains. It needed longer irradiated time to finish isomerization due to the emulsion aggregated states, comparing with phenylazonaphthalene monomer solution and WPU dilute solution.
Vorheriger Artikel The role of exfoliated kaolinite on crystallinity, ion conductivity, thermal and mechanical properties of poly(ethylene oxide)/kaolinite composites
Nächster Artikel Structural, vibrational, thermal, electrical properties of PVP–PVC blend NH4SCN

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Metadaten
Titel
Photoisomerization of waterborne polyurethane with side-chained phenylazonaphthalene group
verfasst von
Wei Sun
Yan Zheng
Xingyuan Zhang
Publikationsdatum
24.12.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 8/2017
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-016-1895-9

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