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ۼ : 15-02-09 10:50
[15.02]⹮ -Reversible Morphological Transformation between Polymer Nanocapsules and Thin Films through Dynamic Covalent Self-Assembly
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ȸ : 1,377  

Reversible Morphological Transformation between Polymer Nanocapsules and Thin Films through Dynamic Covalent Self-assembly

Jeehong Kim, Kangkyun Baek,* Dinesh Shetty, Narayanan Selvapalam, Gyeongwon Yun, Nam Hoon Kim, Young Ho Ko, Kyeng Min Park, Ilha Hwang, and Kimoon Kim*

 

Scheme 1 Formation of 2D polymer film 3 and polymer nanocapsule 2 through reversible disulfide bond formation and reversible morphological transformation between them.

We developed a facile method for synthesizing polymer nanocapsules and thin films using multiple in-plane stitching of monomers via the formation of reversible disulfide linkages. Due to the reversibility of the disulfide linkages, the nanostructured materials readily transform their structures in response to environmental changes at room temperature. For example, in reducing environments, the polymer nanocapsules release loaded cargo molecules. Moreover, reversible morphological transformations between these structures can be achieved by simple solvent exchanges. Our work presents a novel approach for the formation of robust nano/microstructured materials that dynamically respond to environmental stimuli.

 

Ƽ ۿⰡ Ե Ŀ[6](CB[6]) ٸ Ÿ Ͽ ũʸ ĸ ü ռ߰, ſ ü(ũʸ, ĸ, ׸ ) ȯ ִ ߴ. ̷ (DLS) ֻ̰(SEM), ̰(TEM), ܼб(FT-IR), ̰(AFM) ̿Ͽ ü ռ ȯ . ȭко ȰԹ ɹ(Angewandte chemie, IF 11.336) ¶ο 1 21 ƴ.


 
 

Total 77
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