Ultraviolet irradiation induced changes in the surface of phenolphthalein poly(ether sulfone) film

被引：9
|
作者：
Pei, Xianqiang
Wang, Qihua
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 | 2007年 / 253卷 / 10期
基金：
中国国家自然科学基金;
关键词：
phenolphthalein poly(ether sulfone) (PES-C); ultraviolet (UV) irradiation; surface characteristic; photooxidation;
D O I：
10.1016/j.apsusc.2006.10.011
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：
Changes in surface characteristics of phenolphthalein poly(ether sulfone) (PES-C) film induced by ultraviolet (UV) irradiation were investigated. The surface properties of the pristine and irradiated films were studied by attenuated total-reflection FTIR (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), contact angle measurements and atomic force microscopy (AFM). It was found that photooxidation degradation took place on the sample surface after irradiation and the oxygen content in the surface increased as evidenced by FTIR-ATR and XPS results. The water contact angle of the irradiated films decreased with increasing irradiation time, which was ascribed to the increased polarity of the surface induced by photcoxidation. The etching of ultraviolet irradiation induced the roughening of PES-C surface after irradiation with its root-mean-square roughness (RMS) determined by AFM increased from 2.097 nm before irradiation to 7.403 nm in the area of 25 mu m x 25 mu m. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：4550 / 4553
页数：4
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