1. Interfacial Synthesis of an Ultrathin Two-Dimensional Polymer Film via [2 + 2] Photocycloaddition.
- Author
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Ban, Yanqi, Wang, Hui, Xiao, Zixuan, Sun, Lishui, Pan, Qingyan, and Zhao, Yingjie
- Subjects
POLYMER films ,PHOTOCYCLOADDITION ,X-ray photoelectron spectroscopy ,PHOTOELECTRON spectroscopy ,THIN films ,POLYMERIZATION ,RING formation (Chemistry) ,POLYMERS - Abstract
A carbon–carbon-linked, ultrathin, two-dimensional (2D) polymer film was prepared at the air/water interface through photochemically triggered [2 + 2] cycloaddition. The preorganization of the monomers on the water surface and the subsequent photo-polymerization led to the successful preparation of the ultrathin 2D polymer film. The obtained film is continuous, free standing, and has a large area (over 50 μm
2 ). Transmission electron microscopy (TEM) and atomic force microscopy (AFM) give clear evidence of the ultrathin film morphology. Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) indicate successful photo-induced [2 + 2] polymerization. [ABSTRACT FROM AUTHOR]- Published
- 2023
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