Radiation stability of electron beam irradiated high degree sulfonated poly (ether ether ketone) membranes for the applications in nuclear facilities

被引：1
作者：
Pajuste, E. [1 ,2 ]
Reinholds, I. [2 ,3 ,7 ]
Vaivars, G. [1 ,4 ]
Zicans, J. [6 ]
Meri, R. M. [6 ]
Avotina, L. [1 ]
Sprugis, E. [1 ,4 ]
Rzepna, M. [5 ]
机构：
[1] Univ Latvia, Inst Chem Phys, Jelgavasiela 1, Riga, Latvia
[2] Univ Latvia, Fac Chem, Jelgavas Iela 1, Riga, Latvia
[3] Balt Sci Instruments, Ganibu dambis 26, Riga, Latvia
[4] Univ Latvia, Inst Solid State Phys, Kengaraga iela 8, Riga, Latvia
[5] Inst Nucl Chem & Technol, Ctr Radiat Res & Technol, Dorodna 16, Warsaw, Poland
[6] Riga Tech Univ, Inst Polymer Mat, Fac Mat Sci & Appl Chem, Riga, Latvia
[7] Inst Food Safety, Anim Hlth & Environm BIOR, Lejupesiela 3, Riga, Latvia
来源：
POLYMER DEGRADATION AND STABILITY | 2024年 / 219卷
关键词：
Poly(ether ether ketone); Degree of sulfonation; Ionising radiation; Mechanical and thermomechanical properties; PROTON-EXCHANGE MEMBRANE; ISOTOPE-SEPARATION; CROSS-LINKING;
D O I：
10.1016/j.polymdegradstab.2023.110615
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Sulfonated poly(ether ether ketones) (SPEEK) have raised interest as a replacement of Nafion (R) proton exchange membranes (PEM) for the application in harsh environments involving material exposure to ionizing radiation, for example, radioactive hydrogen isotope separation from water. This study is dedicated to evaluate the effects of high dose (500 kGy) electron beam irradiation on the physico-chemical and thermomechanical properties of highly sulfonated (degree of sulfonation 60-90 %) SPEEK membranes irradiated in air and water. Spectrometric and thermogravimetric analysis indicated slight changes in the material properties after irradiation with increase of the degree of sulfonation (DS). Tensile tests and thermomechanical analysis of irradiated samples indicated notable deterioration of properties at higher DS values. Results demonstrate that SPEEK membranes with DS around 70 % could be a replacement of the traditional PEM for the applications where exposure to ionizing radiation occurs.
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页数：11
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