Abstract
In this work, some segmented poly(ether–urethane–urea)s (PEUUs) containing aza crown ether (cryptand) were prepared and characterized. These polymers were synthesized via the reaction of kryptofix 22 with 2 mol excess of 4,4′-methylene-bis-(4-phenylisocyanate) (MDI), and different molecular weights of polyethylene glycols (PEGs). Morphology, thermal, and complexation properties of these polymers were studied by Fourier-transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), atomic absorption spectroscopy (AAS), and solid state NMR (S-NMR). The data confirmed complexation ability of these polymers for Li+ ion absorption and revealed the effect of Li+ ion complexation on the morphology and thermal behavior of the PEUUs.
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Acknowledgments
Financial support of this work by the Research Deputy of Ministry of Science, Research, and Technology of I.R. Iran (Grant Number: 32-2450, entitled “Synthesis of various kriptofixes based nanotubes”, and Research Affairs Division Isfahan University of Technology (IUT), is gratefully acknowledged. Further financial support from the Center of Excellency in Sensors and Green Chemistry Research IUT is also acknowledged. We also extend our thanks to Ms. R. Bakhshi, Mr. G. H. Asghari of IPPI, Tehran I.R. Iran and Mr. H. Atabati and Miss A. Zendegi of IUT for recording TGA, DSC, AAS data.
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Mallakpour, S., Rafiemanzelat, F., Zolfigol, M.A. et al. Synthesis, characterization, and properties of co-poly(ether–urethane–urea)s containing lariat cryptand 22: Li+ harvesting polymers. Polym. Bull. 67, 553–569 (2011). https://doi.org/10.1007/s00289-010-0394-7
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DOI: https://doi.org/10.1007/s00289-010-0394-7