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Thermal degradation of carboxylate‐based polyurethane anionomers
Author(s) -
Matsunaga Katsuji,
Tajima Masahiro,
Yoshida Yasuhiko
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.23574
Subject(s) - thermogravimetry , polyurethane , thermal decomposition , fourier transform infrared spectroscopy , degradation (telecommunications) , materials science , salt (chemistry) , decomposition , thermal analysis , polymer chemistry , nuclear chemistry , chemical engineering , thermal , chemistry , organic chemistry , inorganic chemistry , composite material , telecommunications , physics , meteorology , computer science , engineering
With the purpose of elucidating the thermal degradation process of carboxylated polyurethane anionomers (PUAs), characterization of PUAs containing potassium and magnesium salts was conducted using thermogravimetry and FTIR spectroscopy. Potassium salt in PUA induced pronounced acceleration on the thermal degradation of urethane linkage in the hard segment as well as ester and carbonate linkages in the soft segment. The absorption bands of ν(NH), ν(C=O), δ(NH), ν (CN), and ν(COC) in FTIR spectra of PUAs recorded as a function of increasing temperature demonstrated abrupt changes around the initial thermal decomposition temperature, making possible comprehensive studies of the thermal degradation process of PUAs. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 573–579, 2006