Ouyang Wei, Felig Ke, Li Zhuomei. Study on the Ionic Interaction in Sulfonated EPDM Ionomers in Solid State[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1994,33(1):61-66.
Ouyang Wei, Felig Ke, Li Zhuomei. Study on the Ionic Interaction in Sulfonated EPDM Ionomers in Solid State[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1994,33(1):61-66.DOI:
The ionic interaction in sulfonated EPDM ionomers containing Li ̄+
Na ̄+
K ̄+
Mg ̄(2+)
Ca ̄(2+)and Ba ̄(2+) has been investigated in solid state。 The existence of ionic cross-linking due to aggregation of M ̄+ groups is detected by solubility tests.The infraredspectra(IR ) show that the interaction between sulfonate anion and metal cation decreas-(Institute of Polymer Science
Zhongshan University
Guangzhou 510275)es withionic radiibut increases with valence。The dynamic mechanical analysis(DMA)shows that the width of the rubber platform decreases in the order of Li ̄+>Na ̄+>K ̄+
Mg ̄(2+)>Ca ̄(2+)>Ba ̄(2+) and M ̄(2+)>M ̄+。 Both IR and DMA indicate that the ionic interactionin sulfonated EPDM ionomers depends on the charge density on cation sulface.