期刊
CELL REPORTS PHYSICAL SCIENCE
卷 3, 期 4, 页码 -出版社
CELL PRESS
DOI: 10.1016/j.xcrp.2022.100843
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资金
- National Science Foundation for Distinguished Young Scholars [51925301]
- National Natural Science Foundation of China [52122315, 21972008, 21875017, 21902008]
- National key R&D Program of China [2021YFC2103900, wrjh201903]
- Beijing Nova Program [Z201100006820021]
- Open Project of State Key Laboratory [sklssm2022]
The study finds that self-healing phenomena can be used to judge whether a film can be a flexible spacing coating for macroscopic supramolecular assembly (MSA) of rigid materials. The metric is applied to different film systems and proven effective in designing coatings for MSA, which is applied in advanced manufacturing.
Macroscopic supramolecular assembly (MSA) refers to rapid molecular recognition between macroscopic components (> 10 mm). Normally, MSA of rigid materials relies on a so-called flexible spacing coating beneath surface groups to provide high molecular mobility to realize multivalent binding. However, design principle of such coatings remains elusive. Here, we report an intuitive metric based on self-healing phenomena to judge whether a film can be a flexible spacing coating and apply this metric to extend film systems for MSA of rigid materials. The correlation between MSA and self -healing based on poly(ethylenimine)/poly(acrylic acid) films is revealed by similar dependence of assembly ratios and healing performance on film rigidity. Films capable of self-healing within 30 s can be used as flexible spacing coating for MSA. This metric is applied to three different film systems and proven effective to design coatings for MSA of rigid materials, which is applied in advanced manufacture of heterogeneous structure.
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