Abstract
The effects of small contents of absorbed water on coordinated structure and rheological properties for EMAA-Zn ionomers in terms of dynamic visocoelastic and FT-IR measurement were investigated. To clarify the influence of absorbed water in ionomers, the moisture contents were measured by Karl Fisher Method. It was clarified that zero shear viscosities of EMAA-ionomers were reduced by small contents of absorbed water. We considered that the drastic change of coordinated structure by little amounts of water might induce acid-cation exchange and affect melt rheological properties such as zero shear viscosities. We consider that absorbed water is one of the key factors to control zero shear viscosity in EMAA-Zn ionomer melts.
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Nishioka, A., Koda, T., Miyata, K. et al. The Effects of Small Contents of Water on Melt Rheology for Ethylene-Methacrylic Zinc Ionomers. Polym J 40, 350–353 (2008). https://doi.org/10.1295/polymj.PJ2007156
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DOI: https://doi.org/10.1295/polymj.PJ2007156
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