Effects of atomic oxygen irradiation on the surface properties of phenolphthalein poly(ether sulfone)

被引：30
|
作者：
Pei, Xianqiang [1 ]
Li, Yan [1 ,2 ]
Wang, Qihua [1 ]
Sun, Xiaojun [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2009年 / 255卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Low earth orbit; Atomic oxygen; Irradiation; Surface property; Polymer; LOW-EARTH-ORBIT; FLUORINATED POLYIMIDES; SPACE APPLICATIONS; POLYMERS; FILMS; EROSION; O(P-3); OXIDE;
D O I：
10.1016/j.apsusc.2009.01.036
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
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. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：5932 / 5934
页数：3
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