1. Synthesis of dendritic urethane acrylates for fabricating a robust honeycomb-like structure acting for SERS detection.
- Author
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Wang, Kuan-Syun, Cheng, Yu-Wei, Lin, Han-Yu, Chen, Min-Hao, Yeh, Shih-Chieh, Huang, Ying-Chi, Wu, Chien-Hsin, Jeng, Ru-Jong, and Liu, Ting-Yu
- Subjects
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ACRYLATES , *URETHANE , *POLYURETHANES , *SERS spectroscopy , *METHYL methacrylate , *SURFACE resistance - Abstract
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. • Novel synthesis of dendritic urethane acrylate copolymers • Development of UV-curable polymer surface with honeycomb-like structure • Realization of robust polymer surfaces with solvent resistance properties • Detection of aqueous insoluble analytes via surface-enhanced Raman scattering analysis [ABSTRACT FROM AUTHOR]
- Published
- 2023
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