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相关概念视频

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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相关实验视频

Updated: Jul 25, 2025

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

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通过结合形状记忆效应,光固定性和光变形的方法,对含有亚博的聚胺进行多重形状操纵.

Xuejie Sun1, Menghan Zhang1, Jia Wei1

  • 1Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China.

ACS macro letters
|June 26, 2023
PubMed
概括

这项研究引入了一种具有集成热和光诱导形状操纵的新型聚胺材料. 这种智能材料为先进的执行器应用提供了多功能形状控制.

科学领域:

  • 材料科学 材料科学 材料科学
  • 聚合物化学 聚合物化学
  • 智能材料是一种智能材料.

背景情况:

  • 智能材料需要集成的形状控制来增强功能.
  • 在单一材料中结合热和光反应性质是具有挑战性的.
  • 聚胺为开发先进的功能性材料提供了一个强大的平台.

研究的目的:

  • 开发一种具有集成多重形状操纵能力的聚胺.
  • 为了实现热诱导形状记忆和光响应性行为之间的协同作用.
  • 为了创建具有组合形状控制机制的多功能执行器.

主要方法:

  • 合成了一个聚胺网络与阿佐二烯侧链.
  • 内置的三功能交叉连接器用于热诱导形状记忆.
  • 用于光固定性和可逆光变形性的阿佐基组.
  • 研究了热和光响应行为的独立性和兼容性.

主要成果:

  • 聚胺表现出独立的热诱导形状记忆效应和光反应性行为 (光固定性,可逆光变形性).
  • 这些特性在热塑造和固定后保持不变,不需要分子预调整.
  • 该材料允许任意组合的热和光诱导的形状变化.

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Modulating Shape of Polyester Based Polymersomes using Osmotic Pressure
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相关实验视频

Last Updated: Jul 25, 2025

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Modulating Shape of Polyester Based Polymersomes using Osmotic Pressure
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Modulating Shape of Polyester Based Polymersomes using Osmotic Pressure

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  • 通过整合这些属性,演示了各种形状和功能执行器的创建.

    • 结论:

    • 成功制备了一种具有双热和光响应形状操纵的新型聚胺.
    • 刺激的非干扰性质允许多功能和可组合的形状控制.
    • 这种方法为设计具有智能驱动器潜在应用的多功能执行器提供了新的途径.