Solvent-Responsive Reversible and Controllable Conversion between a Polyimine Membrane and an Organic Molecule Cage,Journal of the American Chemical Society

当前位置： X-MOL 学术 › J. Am. Chem. Soc. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Solvent-Responsive Reversible and Controllable Conversion between a Polyimine Membrane and an Organic Molecule Cage
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2023-03-01 , DOI: 10.1021/jacs.2c12088
Qiu-Hong Zhu ₁ , Guo-Hao Zhang ₁ , Lei Zhang ₁ , Shuang-Long Wang ₁ , Jie Fu ₁ , Yuan-Hao Wang ₁ , Lijian Ma ₁ , Ling He ₁ , Guo-Hong Tao ₁

Affiliation

Adaptive bionic self-correcting behavior offers an attractive property for chemical systems. Here, based on the dynamic feature of imine formation, we propose a solvent-responsive strategy for smart switching between an amorphous ionic polyimine membrane and a crystalline organic molecule cage without the addition of other building blocks. To adapt to solvent environmental constraints, the aldehyde and amine components undergo self-correction to form a polymer network or a molecular cage. Studies have shown that the amorphous film can be switched in acetonitrile to generate a discrete cage with bright birefringence under polarized light. Conversely, the membrane from the cage crystal conversion can be regained in ethanol. Such a membrane–cage interconversion can be cycled continuously at least 5 times by switching the two solvents. This work builds a bridge between the polymer network and crystalline molecules and offers prospects for smart dynamic materials.

中文翻译：

聚亚胺膜与有机分子笼之间的溶剂响应可逆可控转化

自适应仿生自我纠正行为为化学系统提供了一个有吸引力的特性。在这里，基于亚胺形成的动态特征，我们提出了一种溶剂响应策略，用于在不添加其他构建块的情况下在非晶离子聚亚胺膜和结晶有机分子笼之间进行智能切换。为了适应溶剂环境的限制，醛和胺组分进行自我校正以形成聚合物网络或分子笼。研究表明，非晶薄膜可以在乙腈中切换，生成在偏振光下具有明亮双折射的离散笼。相反，来自笼式晶体转化的膜可以在乙醇中重新获得。通过切换两种溶剂，这种膜-笼相互转化可以连续循环至少 5 次。

更新日期：2023-03-01

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南