• 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 >Polyurea microcapsules with different structures: Preparation and properties
【24h】

Polyurea microcapsules with different structures: Preparation and properties

机译：不同结构的聚脲微胶囊：制备与性能

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

Polyurea microcapsules were formed by carrying out an interfacial polycondensation reaction in emulsion globules between various diisocyanates and ethylenediamine to investigate the effects of the chemical structure on various characteristics. FTIR showed that very reactive aromatic 2,4-toulene diisocyanate produced many more hydrogen-bonded N-H groups than did other aliphatic diisocyanates. All the microcapsules in this study had prominent thermal stabilities from the results of DSC and TG. It was evident that both the molecular weight and the reactivity of diisocyanates determined the mean diameter and particle-size distribution at the same time. (C) 2000 John Wiley & Sons, Inc. [References: 6]
机译：聚脲微胶囊是通过在各种二异氰酸酯和乙二胺之间的乳液小球中进行界面缩聚反应而形成的，以研究化学结构对各种特性的影响。 FTIR表明，与其他脂族二异氰酸酯相比，反应性极强的芳族2,4-甲苯二异氰酸酯产生更多的氢键合N-H基团。从DSC和TG的结果来看，本研究中的所有微胶囊均具有突出的热稳定性。显然，二异氰酸酯的分子量和反应性同时决定了平均直径和粒径分布。 （C）2000 John Wiley＆Sons，Inc. [参考：6]

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