• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Rheological properties of poly(ethylene oxide) aqueous solutions
【24h】

Rheological properties of poly(ethylene oxide) aqueous solutions

机译：聚环氧乙烷水溶液的流变性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This article describes the rheological properties of certain poly(ethylene oxide)s dissolved in water-based solvents. The experimental results show that the rheological properties in aqueous solutions are significantly affected by the solvent properties, which have been changed by the use of ethanol-water mixtures and electrolyte solutions and by the variation of the ambient pressure and temperature. The variation of the temperature and pressure is seen to change the polymer chain configuration and also the interactions of polymer segments with the solvent molecules. This gives rise to distinctive and apparently unusual rheological properties for these systems with the variation of the ambient temperature and pressure. The study generally illustrates that the rheology of these systems are, to a large degree, influenced by the hydrogen bonding in the solvent and between the solvent as well as the polymer. At a first-order level, the increase of the pressure and the temperature and also the addition of electrolytes, and the inclusion of an aqueous diluent, produce comparable effects. In essence, these changes seem to disrupt the hydrogen bonding structure in the solutions and, hence, the solvent quality in a comparable fashion. (C) 1998 John Wiley & Sons, Inc. [References: 32]
机译：本文介绍了某些溶解在水基溶剂中的聚环氧乙烷的流变特性。实验结果表明，水溶液的流变性质受溶剂性质的显着影响，溶剂性质已通过使用乙醇-水混合物和电解质溶液以及环境压力和温度的变化而改变。可以看出温度和压力的变化改变了聚合物链的构型，也改变了聚合物链段与溶剂分子的相互作用。随着环境温度和压力的变化，这为这些系统带来了独特的，显然是不寻常的流变性质。该研究通常表明，这些体系的流变性在很大程度上受溶剂中以及溶剂与聚合物之间氢键的影响。在一级水平上，压力和温度的增加以及电解质的添加以及含水稀释剂的加入产生了可比较的效果。本质上，这些变化似乎破坏了溶液中的氢键结构，并因此以可比的方式破坏了溶剂的质量。 （C）1998 John Wiley＆Sons，Inc. [参考：32]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号