含有柱[5]芳烃和偶氮苯基团的两亲性分子自组装的有序纳米组装体,Polymer International

当前位置： X-MOL 学术 › Polym. Int. › 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.)

含有柱[5]芳烃和偶氮苯基团的两亲性分子自组装的有序纳米组装体
Polymer International ( IF 2.9 ) Pub Date : 2023-12-06 , DOI: 10.1002/pi.6600
Peng Liu ₁ , Yingying Deng ₁ , Jie Lu ₁ , Xiaoliang Gou ₁ , Qingqing Han ₁ , Yi‐Rong Pei ₁ , Long Yi Jin ₁

Affiliation

柱[ n ]芳烃的衍生化是赋予其功能的前提，也是丰富柱[ n ]芳烃材料在先进材料科学中的应用的前提。在此，我们报道了两亲性边缘分化柱[5]芳烃（ H ₁）的自组装。柱[5]芳烃的一侧由亲水性聚环氧乙烷链、苯和偶氮苯基团以醚键连接组成，另一侧由乙氧基组成。在CHCl ₃溶剂中，两亲物H ₁自组装成球形胶束，而在H ₂ O/THF混合溶剂中H ₁自组装成纳米棒状组装体。有趣的是，将由四苯乙烯和己腈基团（ G ₁ ）组成的客体分子添加到H ₁的CHCl ₃溶液中，通过杆段的强π - π堆积产生大的片状聚集体。通过添加客体分子1,4-丁胺（ G ₂）和带有乙氧基的柱[5]芳烃作为竞争分子，实现了主客体复合物的纳米片组件和纳米颗粒之间的可逆转化。值得注意的是，在光照射引发的H ₂ O/THF溶液中构建了H ₁的蠕虫状和纳米棒胶束，该组装体可用作光敏可擦书写材料。 © 2023 工业化学学会。

"点击查看英文标题和摘要"

Ordered nanoassemblies from self-assembly of amphiphilic molecule containing pillar[5]arene and azobenzene groups

The derivatization of pillar[n]arenes is a prerequisite for endowing them with functions, as well as enriching the application of pillar[n]arene materials in advanced material science. Herein, we report the self-assembly of amphiphilic rim-differentiated pillar[5]arene (H₁). One side of the pillar[5]arene is composed of hydrophilic poly(ethylene oxide) chains, benzene and azobenzene groups connected with ether bonds, and the other side is composed of ethoxy groups. In CHCl₃ solvent, the amphiphile H₁ self-assembled into spherical micelles, while in H₂O/THF mixed solvent H₁ self-assembled into nanorod-like assemblies. Interestingly, addition of a guest molecule composed of tetraphenylethene and hexanenitrile groups (G₁) to the CHCl₃ solution of H₁ produces large sheet aggregates via the strong π–π stacking of rod segments. The reversible transformation between the nanosheet assemblies of host–guest complexes and nanoparticles is achieved by addition of the guest molecule 1,4-butylamine (G₂) and pillar[5]arene with ethoxy groups as competitive molecules. Notably, worm-like and nanorod micelles of H₁ were constructed in H₂O/THF solution triggered by light irradiation, which assemblies can be used as photosensitive erasable writing materials. © 2023 Society of Industrial Chemistry.

更新日期：2023-12-06

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