ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces
5 years ago

Inhibition of Heterogeneous Ice Nucleation by Bioinspired Coatings of Polyampholytes

Inhibition of Heterogeneous Ice Nucleation by Bioinspired Coatings of Polyampholytes
Zhenqi Liu, Jianjun Wang, Shenglin Jin, Chuncheng Li, Liuchun Zheng, Zhiyuan He
Control of heterogeneous ice nucleation (HIN) on foreign surfaces is of great importance for anti-ice-nucleation material design. In this work, we studied the HIN behaviors on various ion-modified poly(butylene succinate) (PBS) surfaces via chain-extension reaction. Inspired by antifreeze proteins (AFPs), the PBS-based polyampholytes, containing both negative and positive charge groups on a single chain, show excellent performance of ice nucleation inhibition and freezing delay. Unlike the extremely high price and low availability of AFPs, these PBS-based polyampholytes can be commercially synthesized under mild reaction conditions. Through water freezing tests on a wide range of substrates at different temperatures, these PBS-based polyampholytes have shown application value of tuning ice nucleation via a simple spin-coating method.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b10014

DOI: 10.1021/acsami.7b10014

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