当前位置: X-MOL 学术ACS Macro Lett. › 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.)
Wavelength-Controlled Light-Responsive Polymer Vesicle Based on Se–S Dynamic Chemistry
ACS Macro Letters ( IF 5.8 ) Pub Date : 2020-01-15 , DOI: 10.1021/acsmacrolett.9b00983
Peng Zhao 1 , Jiahao Xia 1 , Muqing Cao 1 , Huaping Xu 1
Affiliation  

Wavelength-controlled Se–S dynamic chemistry was put forward recently as a convenient way to regulate the balance of a selenide sulfide exchange reaction. In this paper, we synthesized an asymmetric polymeric amphiphile linked with a Se–S bond and then induced it to self-assemble into vesicles in water. When the visible light was applied to the assembly solution with addition of toluene, Se–S bonds containing vesicles were ruptured. Thus, the wavelength-controlled light responses of relatively stable polymer assembly were accomplished by introduction of the Se–S dynamic covalent bond, and the response mechanism of the Se–S bond in the vesicle was explored by nuclear magnetic resonance (NMR), gel permeation chromatography (GPC), and X-ray photoelectron spectroscopy (XPS). The results indicated that fracture of the Se–S bond led to the dissociation of assembly. Introduction of Se–S dynamic chemistry into the molecular assembly area enriched the light-responsive polymer systems and would bring many potential applications in the future.

中文翻译:

基于Se-S动态化学的波长控制光响应聚合物囊泡

最近提出了波长控制的 Se-S 动态化学作为调节硒化物硫化物交换反应平衡的简便方法。在本文中,我们合成了一种通过 Se-S 键连接的不对称聚合两亲物,然后诱导它在水中自组装成囊泡。当将可见光应用于添加甲苯的组装溶液时,含有 Se-S 键的囊泡破裂。因此,通过引入Se-S动态共价键来实现相对稳定的聚合物组装体的波长控制光响应,并通过核磁共振(NMR)、凝胶等方法探索囊泡中Se-S键的响应机制。渗透色谱 (GPC) 和 X 射线光电子能谱 (XPS)。结果表明,Se-S键断裂导致组装解离。将 Se-S 动态化学引入分子组装领域丰富了光响应聚合物系统,并将在未来带来许多潜在的应用。
更新日期:2020-01-16
down
wechat
bug