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Toward a computational and experimental model of a poly-epoxy surface

机译:建立聚环氧表面的计算和实验模型

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A model poly-epoxy surface formed by the reaction of DGEBA and EDA is studied by the combination of experiments and DFT calculations. A special synthesis protocol is presented leading to the formation of a surface that is smooth (S-a < 1 nm), chemically homogeneous, and that presents a low-defect density (0.21 mu m(-2)), as shown by AFM characterizations. Then, XPS is used for the determination of the elemental and functional groups' surface composition. DFT allows the identification and assignment of individual bonds contributions to the experimental Is core-level peaks. Overall, we demonstrate that such a model sample is perfectly suitable for a use as a template for the study of poly-epoxy surface functionalization. (C) 2014 Elsevier B.V. All rights reserved.
机译:通过实验与DFT计算相结合,研究了DGEBA与EDA反应形成的聚环氧模型表面。提出了一种特殊的合成方案,该方案导致形成光滑的表面(S-a <1 nm),化学均质并且呈现出低缺陷密度(0.21μm(-2)),如AFM表征所示。然后,将XPS用于确定元素和官能团的表面组成。 DFT可以识别和分配单个键对实验Is核心水平峰的贡献。总的来说,我们证明了这种模型样品非常适合用作研究聚环氧表面官能化的模板。 (C)2014 Elsevier B.V.保留所有权利。

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