FTIR Spectroscopic Studies of Hydration Effect on the Molecular Structure of Polyether Urethane
LIU Zhi1, LIU Xin-hai2, ZHAO Ying2, SUN Xian-yu1, WENG Shi-fu1, XU Duan-fu2, WU Jin-guang1*
1. The State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China 2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
Abstract：The interaction between water molecules and the polar groups in linear polyether urethane was studied by FTIR and subtraction spectroscopy technique. Direct proofs of the combining of water molecule and carbonyl group were obtained. The reorganizations of the ether linkage, carbamate, and carbon-hydrogen chain after hydration were also observed. These results suggest that the FTIR and subtraction spectroscopy technique could be a useful tool to investigate the hydration mechanism of polymer materials.
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