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Highly transparent and self-healing films based on the dynamic Schiff base linkage

机译：基于动态席夫基地联系的高度透明和自愈的薄膜

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Self-healing optically transparent coatings have attracted significant attention due to their high transparency and ability to heal damages at the same time. In this study, we report an optically transparent and self-healing film via a layer by layer assembly. This film is based on chitosan (CS) and poly(ethylene glycol) functionalized by dialdehyde groups (DF-PEG). The dynamic equilibrium of Schiff base linkage between the aldehyde groups on DF-PEG and amino groups on CS resulted in the self-healing property of the film. The CS/DF-PEG film can heal damages several times at the same location. Moreover, the Schiff base-bonded CS/DF-PEG films are highly transparent with a transmittance of up to 99.47%, and the transmittance of the film can remain at 99% after ten damage/healing processes. The combination of self-healing property and high transparency provides a new method for fabricating the optically transparent devices.
机译：由于它们的高透明度和同时愈合损坏的能力，自我愈合的光学透明涂料引起了显着的关注。在本研究中，我们通过层组件通过层报告光学透明和自愈膜。该薄膜基于壳聚糖（Cs）和聚（乙二醇）通过二醛基团（DF-PEG）官能化。 CS上DF-PEG和氨基​​上醛基与氨基之间的赤脂基键合的动态平衡导致薄膜的自愈性。 CS / DF-PEG薄膜可以在同一位置愈合几次损坏。此外，席夫碱基键合CS / DF-PEG薄膜具有高达99.47％的透射率高达99.47％，并且在十个损伤/愈合过程后，薄膜的透射率可以保持在99％。自愈合性能和高透明度的组合提供了一种制造光学透明装置的新方法。

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