Improve the physical and chemical properties of biocompatible polymer material by MeV He ion beam

被引：20
作者：
Abdul-Kader, A. M. [1 ,2 ]
El-Gendy, Y. A. [1 ,2 ]
Al-Rashdy, Awad A. [3 ]
机构：
[1] Umm Al Qura Univ, Univ Coll, Dept Phys, Alqunfoza, Saudi Arabia
[2] Helwan Univ, Fac Sci, Dept Phys, Ain Helwan, Helwan, Egypt
[3] Umm Al Qura Univ, Univ Coll, Dept Chem, Alqunfoza, Saudi Arabia
来源：
RADIATION PHYSICS AND CHEMISTRY | 2012年 / 81卷 / 07期
关键词：
Biocompatible polymer; UHMWPE; Ion beam bombardment; Surface modification; Photoluminescence; Biocompatibility; MOLECULAR-WEIGHT POLYETHYLENE; SURFACE MODIFICATION; HYDROGEN RELEASE; GAMMA-RADIATION; BOMBARDMENT; IRRADIATION; OXIDATION; UHMWPE;
D O I：
10.1016/j.radphyschem.2012.04.009
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：
There is a high interest in improving the hydrophilicity of polymer surfaces due to their wide use for technological purposes. In this study Ultra High Molecular Weight Polyethylene (UHMWPE) as a biocompatible material was bombarded with 1 MeV He ions to the fluences ranging from 1 x 10(13) to 5 x 10(14) cm(-2). The pristine and ion beam modified samples were investigated by photoluminescence (PL), ultraviolet-visible (UV-vis) spectroscopy and Fourier Transform Infrared Spectroscopy (FTIR). The changes of wettability and surface free energy were determined by the contact angle measurements. The obtained results showed that the ion bombardment induced decrease in integrated luminescence intensity and decrease in the transmittance with increase of ion fluence as well. This is might be attributed to degradation of polymer surface and/or creation of new electronic levels in the forbidden gap. The FTIR spectral studies indicate that the ion beam induces chemical modifications within the bombarded UHMWPE. Formation of carbonyl groups (C=O) on the polymer surface was studied. Direct relationship of the wettability and surface free energy of the bombarded polymer with the ion fluences was observed. (C) 2012 Elsevier Ltd. All rights reserved.
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页码：798 / 802
页数：5
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