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

页码：5932 / 5934

页数：3

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