2005年1月
Rheological properties of ethylene ionomer neutralized with binary metal cation
POLYMER
- ,
- ,
- ,
- 巻
- 46
- 号
- 1
- 開始ページ
- 261
- 終了ページ
- 266
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.poplymer.2004.10.071
- 出版者・発行元
- ELSEVIER SCI LTD
The roles of ionic bonding in molten ethylene ionomers without ionic aggregates were rheologically characterized in linear regions under shear. We have measured melt viscosities of ethylene-methacrylic acid (EMAA) ionomers by means of dynamic shear experiment. The samples used in this study were binary mixtures selected from Na, Mg and Zn salts of EMAA (MAA = 5.4 mol%). The dynamic shear properties revealed that the time-material superposition is applicable to these ionomer blends in a temperature range from 140 to 200degreesC. It was also found that these binary mixtures unexpectedly give decreases of zero shear viscosities obtained from a time-material superposition, if the cations were selected from different metal groups such as alkali, alkaline earth and transition metals. This behavior can be explained by the acid-cation exchange mechanism. (C) 2004 Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.poplymer.2004.10.071
- ISSN : 0032-3861
- Web of Science ID : WOS:000226316700028