Photo- and Metallo-responsive N-Alkyl α-Bisimines as Orthogonally Addressable Main-Chain Functional Groups in Metathesis Polymers

被引：40

作者：

Greb, Lutz ^{[1
,2
]}

Mutlu, Hatice ^{[3
,4
]}

Barner-Kowollik, Christopher ^{[3
,4
]}

Lehn, Jean-Marie ^{[1
,2
]}

机构：

[1] Univ Strasbourg, Inst Sci & Ingn Supramol, 8 Allee Gaspard Monge, F-67000 Strasbourg, France

[2] Karlsruhe Inst Technol, Inst Nanotechnol, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[3] Karlsruhe Inst Technol, Inst Biol Grenzflachen, Soft Matter Synth Lab, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[4] Karlsruhe Inst Technol, Inst Tech Chem & Polymerchem, Preparat Macromol Chem, Engesserstr 18, D-76131 Karlsruhe, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2016年 / 138卷 / 04期

关键词：

SUPRAMOLECULAR POLYMERS; SYNTHETIC-POLYMERS; NANOPARTICLES; COVALENT; PERSPECTIVES; COMPLEXES; CHEMISTRY; DYNAMERS; WATER;

D O I：

10.1021/jacs.5b12198

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

N-alkyl alpha-bisimines were employed as main-chain functional groups in acyclic diene metathesis (ADMET)-polymers, conferring dual responsiveness for the controlled switching of the polymeric particle shape with light and metal ions. Photochemical Z/E-isomerization leads to a significant and reversible change in hydrodynamic volume, thus introducing simple imines as novel photoswitches for light-responsive materials. Mild imine-directed CH activation by Pd(OAc)(2) is demonstrated as a new single-chain nanoparticle (SCNP) folding process, enabling a controlled atom- and step-economic SCNP synthesis. The combination of light- and metallo-responsiveness in the same polymer provides the ability for orthogonal switching, a valuable tool for advanced functional material design.

引用

页码：1142 / 1145

页数：4

共 58 条

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