|
|||||
|
|
Investigation of the transition of acrylate cation exchangers from solidlike into highly elastic state under hydration |
|
| Authors: | V I Chromov A S Plachinda A Akashat B N Lascorin N G Zhukova V V Krylova S I Kamyshanskii S I Alekceeva |
| Institution: | (1) D. I. Mendeleev Institute of Chemical Technology, 125820 Moscow, USSR;(2) Institute of Chemical Physics, Acad. Sci. USSR, V-334 Moscow, USSR;(3) Research Institute of Chemical Technology, 115409 Moscow, USSR |
| Abstract: | The transition from solid-like (glassy) state into the (elastic) state with high intramolecular mobility under hydration was investigated for two57Fe3+-substituted cation exchangers (SGK ?7 and SG ?1 m with acrylic and methacrylic nature of chains). The transition was observed as sharp change of Mössbauer lineshape (appearance of quasielastic components) and decrease of Mössbauer effect probability. The region of hydration degrees in which the transition occurs in both systems varies from 1 to 3–4 H2O molecules per ?COOH group depending on cross-linkage concentration in a nonmonotonous way. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |