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首页> 外文期刊>Applied Surface Science >Effects Of Atomic Oxygen Irradiation On The Surface Properties Of Phenolphthalein Poly(ether Sulfone)
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Effects Of Atomic Oxygen Irradiation On The Surface Properties Of Phenolphthalein Poly(ether Sulfone)

机译：原子氧辐照对酚酞聚醚砜表面性能的影响

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摘要

To study the effects of low earth orbit environment on the surface properties of polymers, phenolphthalein poly(ether sulfone) (PES-C) blocks were irradiated by atomic oxygen in a ground-based simulation system. The surface properties of the pristine and irradiated blocks were studied by attenuated total-reflection FTIR (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM). It was found that atomic oxygen irradiation induced the destruction of PES-C molecular chains, including the scission and oxidation of PES-C molecular chains, as evidenced by FTIR and XPS results. The scission of PES-C molecular chains decreased the relative concentration of C in the surface, while the oxidation increased the relative concentration of O in the surface. The changes in surface chemical structure and composition also changed the surface morphology of the block, which shifted from smooth structure before irradiation to "carpet-like" structure after irradiation.
机译：为了研究低地球轨道环境对聚合物表面性能的影响，在地面模拟系统中，原子氧辐照了酚酞聚醚砜（PES-C）嵌段。通过衰减全反射FTIR（FTIR-ATR），X射线光电子能谱（XPS），扫描电子显微镜（SEM）研究了原始块和受辐射块的表面性能。 FTIR和XPS结果证明，原子氧辐照引起PES-C分子链的破坏，包括PES-C分子链的断裂和氧化。 PES-C分子链的断裂降低了表面中C的相对浓度，而氧化增加了表面中O的相对浓度。表面化学结构和组成的变化也改变了嵌段的表面形态，其从辐照前的光滑结构转变为辐照后的“地毯状”结构。

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