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相关实验视频

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综合了解聚立体复合

Zhao-Qian Wan1, Julie M Longo2, Li-Xin Liang3

  • 1State Key Laboratory of Fine Chemicals , Dalian University of Technology , Dalian 116024 , China.

Journal of the American Chemical Society
|August 29, 2019
PubMed
概括
此摘要是机器生成的。

相反的性聚合物形成更强的相互作用,产生具有更高点和结晶度的立体复合物. 这种立体复合物形成受到聚合物结构和链条长度的影响.

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科学领域:

  • 聚合物化学
  • 立体化学
  • 材料科学

背景情况:

  • 化聚合物具有独特的特性.
  • 了解体相互作用是先进材料的关键.

研究的目的:

  • 调查体聚合物之间的立体选择性相互作用.
  • 阐明影响立体复合体形成和属性的因素.

主要方法:

  • 奇拉环氧化物和循环无水化物的区域选择性共聚.
  • 使用点和结晶度测量分析立体复合物形成.
  • 使用拉曼光谱和固态NMR进行了表征.

主要成果:

  • 聚合物聚合物形成立体复合物,具有增强的点和结晶性.
  • 聚合物骨干,战术性,悬挂组和分子量显著影响立体复杂化.
  • 形成立体复合体需要至少5个聚合度.
  • 立体复杂化限制了链的移动性,由NMR放松时间和光谱转移证明.

结论:

  • 在奇拉性聚合物中形成立体复合物导致热和结构性质的改善.
  • 定制聚合物架构对于优化立体复杂化至关重要.
  • 在立体复合体中,链的有限移动性表明了新材料应用的潜力.