材料科学
化学工程
接触角
溶剂
蜂窝结构
共聚物
丙烯酸酯
蜂巢
树枝状大分子
聚合物
制作
水溶液
基质(水族馆)
甲基丙烯酸酯
高分子化学
复合材料
有机化学
医学
化学
替代医学
海洋学
病理
工程类
地质学
作者
Kuan-Syun Wang,Yuanna Cheng,Hung‐Hsuan Lin,Min-Hao Chen,Shih-Chieh Yeh,Yu‐Hsuan Huang,Chien H. Wu,Ru‐Jong Jeng,Ting Yu Liu
标识
DOI:10.1016/j.porgcoat.2023.107840
摘要
In this study, novel dendritic urethane acrylate polymers were developed for the fabrication of robust honeycomb-like surfaces after exposure to a UV-crosslinking process. Through iterative synthesis based on a highly selective intermediate of 4-isocyanate-4′-(3,3-dimethyl-2,4-dioxo-azetidine)-diphenylmethane, poly(urea/malonamide) dendrons bearing peripheral methyl methacrylate end groups with well-defined structures were realized. A coating solution was prepared by the combined use of 30–70 wt% UA dendron acting as dendritic diluents and dendritic UA copolymers acting as amphiphiles that can fabricate honeycomb-like surfaces via a breath figure self-assembly process using water droplets as templates. The resulting film can be cured under UV light to achieve a robust honeycomb-like structure with a hexagonal structure exhibiting solvent-resistant properties in ethanol. Consequently, this solvent-resistant porous array can act as a substrate for the detection of vanishingly low concentrations of analytes that are aqueous insoluble via surface-enhanced Raman scattering analysis.
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