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相关概念视频

Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

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Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
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相关实验视频

Updated: Sep 9, 2025

Improved Polydimethylsiloxane (PDMS) Double Casting via Silicone Oil Treatment for Densely Packed Microstructure Replication
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基于聚合物诱导的相分离的稳定接口交互的基热塑性弹性体

Xu-Tong Guo1, Xin-Yue Hao1, Ge-Ge Lv1

  • 1State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.

ACS applied materials & interfaces
|September 1, 2025
PubMed
概括
此摘要是机器生成的。

该研究使用聚合诱导相分离开发了一种新的热塑性聚氨/热塑性弹性体 (TPU/SiR TPE). 改造后的材料表现出改进的形态,增强的回收,以及灵活的电子应用的优良机械性能.

关键词:
易于调节的阶段结构聚合诱导的相分离回收性能基于的热塑性弹性体稳定的接口交互

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科学领域:

  • 材料科学
  • 聚合物化学

背景情况:

  • 热塑性弹性体 (TPE) 将塑料的强度与的弹性相结合.
  • 高度不兼容的系统,如基于的TPE (Si-TPE),在控制相形态方面面临挑战.

研究的目的:

  • 制备一个具有细微和可控制相形态的热塑性聚氨/热塑性弹性体 (TPU/SiR TPE).
  • 通过修饰和聚合诱导相分离 (PIPS) 来增强Si-TPE的特性.

主要方法:

  • 使用聚合诱导相分离 (PIPS) 来制造TPU/SiR TPE,其中TPU是连续相,SiR是分散相.
  • 通过移植极性来改进 (SiR) 前体,以改善界面相互作用.

主要成果:

  • 实现了细相形态,平均分散相尺寸低至1.93μm,接口厚度增加 (∼570nm).
  • 经过反复处理后,由于极性和结合,证明了更好的回收性能,保持了90%以上的拉伸强度.
  • 增强机械和表面性能,包括舒适的纹理.

结论:

  • PIPS提供了一种有效的方法来制备具有控制细相形态的TPE.
  • 开发的TPU/SiRTPE显示出适用于柔性电子,皮肤友好的材料和智能电子皮肤的潜力.