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相关概念视频

Polymers02:34

Polymers

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The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
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具有适应性功能性质的光诱导活聚合物网络.

Shixuan Wei1, Julian Smith-Jones2, Remy F Lalisse3

  • 1Department of Chemistry, Columbia University, New York, NY, 10027, USA.

Advanced materials (Deerfield Beach, Fla.)
|April 9, 2024
PubMed
概括

本研究介绍了基于碳醇的硫化硫 (CTD) 对于光激活的共价适应性网络 (CAN). 这些CTD允许使用可见光快速,可控地操纵不透明的聚合物网络.

关键词:
共价适应性网络是共价适应性网络.动态共价聚合物网络的动态共价聚合物网络.活体聚合物网络是一种活体聚合物网络.光聚合的光聚合方式.光响应的聚合物.自愈聚合物自愈的聚合物蒂乌拉姆斯 (thiurams) 是一个古老的城市.

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科学领域:

  • 聚合物化学 聚合物化学
  • 材料科学 材料科学 材料科学
  • 宏观分子工程 宏观分子工程

背景情况:

  • 联适应性网络 (CAN) 由于具有动态联键,具有独特的,可设计的特性.
  • 光是CAN的理想刺激,提供远程和时空控制.
  • 现有的光活性CAN通常需要透明度,反应缓慢,光线透度有限.

研究的目的:

  • 为快速可见光触发的CAN开发光学活跃的动态链接.
  • 将"生活"特征赋予CAN,特别是在不透明的系统中.
  • 为了克服光活性CAN中的透明度,响应时间和副作用的局限性.

主要方法:

  • 合成和利用基于碳醇的硫化硫酸 (CTD) 作为光激活链接.
  • 采用具有双重反应性的CTD作为重组链接和化器.
  • 利用可见光辐射触发聚合物网络中的化学变化.

主要成果:

  • CTD显示出对可见光激活的快速反应.
  • 在聚合物网络中实现了对形状操纵,愈合和链延伸的时间控制.
  • 成功操纵不透明的CAN,克服了对光学透明度的需求.

结论:

  • 基于碳醇的硫化硫酸为多功能光激活CAN提供了一个有希望的策略.
  • 可见光可以有效地控制聚合物网络动态,即使在不透明材料中.
  • 这种方法可以对具有增强"生活"特征的CAN进行可控操纵.