• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Superior shape memory properties and microstructure evolution of poly(ether-b-amide12) elastomer enhanced by poly(epsilon-caprolactone)
【24h】

Superior shape memory properties and microstructure evolution of poly(ether-b-amide12) elastomer enhanced by poly(epsilon-caprolactone)

机译：聚（醚-B-Amide12）弹性体的优异形状记忆性能和微观结构演化（epsilon-己内酯）

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

In this work, the superior shape memory properties and microstructure evolution of poly(ether-b-amide12) (PEBA) enhanced by poly(epsilon-caprolactone) (PCL) were investigated. The PEBA/ PCL blends were prepared by the methods of solution mixing and compression molding. The representative phase-separated morphologies were observed by optical microscopy (OM). The recovery stress and shape memory properties of the samples were determined by dynamic mechanical analysis (DMA). It was found that high loadings of PCL (up to 35 wt%) only marginally worsened the recovery properties of the blends. However, the values of maximum recovery stresses increased greatly with PCL content in spite of deformation temperature, indicating an enhancement effect of PCL on the recovery stress of polymer blends. Moreover, in situ wide angle X-ray scattering (WAXS) investigation revealed the microstructure evolution during the shape memory process. It was notable that during the stretching process, the strain-induced crystallization of soft segments (PTMO) of PEBA shifted to lower strain due to the existence of the PCL phase. The present results provided a reference that the recovery stress could be greatly increased by adding another polymer to the shape memory polymer, which is vital to application in the biomedical field.
机译：在这项工作中，研究了聚（ε-己内酯）（PCL）增强的聚（醚-B-Amide12）（PEBA）的优异形状记忆性能和微观结构演化。通过溶液混合和压缩成型方法制备PEBA / PCL共混物。通过光学显微镜观察代表性相分离的形态（OM）。通过动态机械分析（DMA）确定样品的恢复应力和形状记忆性能。发现PCL的高负荷（高达35wt％）仅略微恶化了共混物的回收性质。然而，尽管变形温度，但是，尽管变形温度，最大恢复应力的值大大增加了PCL含量，表明PCL对聚合物共混物的回收应力的增强效应。此外，原位广角X射线散射（蜡）研究揭示了形状记忆过程中的微观结构演变。值得注意的是，在拉伸过程期间，由于PCL相的存在，PEBA的软段（PTMO）的菌株诱导的光学结晶移至较低的菌株。本结果提供了通过向形状记忆聚合物添加另外的聚合物来大大大大增加回收应力，这对于在生物医学领域中施加至关重要。

著录项

  • 来源
    《RSC Advances》 |2015年第62期|共10页
  • 作者

    Huang Miaoming; Dong Xia; Wang Lili; Gao Yunyun; Wang Dujin;

  • 作者单位

    Chinese Acad Sci Inst Chem CAS Key Lab Engn Plast Beijing Natl Lab Mol Sci Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem CAS Key Lab Engn Plast Beijing Natl Lab Mol Sci Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem CAS Key Lab Engn Plast Beijing Natl Lab Mol Sci Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem CAS Key Lab Engn Plast Beijing Natl Lab Mol Sci Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem CAS Key Lab Engn Plast Beijing Natl Lab Mol Sci Beijing 100190 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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