Effect of electron-beam irradiation on poly(2-hydroxyethyl methacrylate)

被引：2
|
作者：
Pinaeva, Uliana [1 ]
机构：
[1] Univ Reims, CNRS, ICMR UMR 7312, F-51097 Reims, France
来源：
EUROPEAN POLYMER JOURNAL | 2023年 / 189卷
关键词：
Electron-beam; Scission; Radiolytic yields; Poly(2-hydroxyethyl methacrylate); Hydrogel; 2-HYDROXYETHYL METHACRYLATE; POLY(METHYL METHACRYLATE); RADIATION; DEGRADATION; POLYMERIZATION; POLYMERS; SENSOR; ESR; PH;
D O I：
10.1016/j.eurpolymj.2023.111959
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The understanding of the radiation-induced degradation mechanisms of polymers is essential towards developing new application implying radiation technology. This study reports on the effect of electron-beam (EB) radiation on linear poly(2-hydroxyethyl methacrylate) upon exposure to 5-100 kGy doses. Various spectroscopic and analytic methods were used to monitor the effects of EB radiation to assess poly(HEMA) reactivity during irradiation in the solid amorphous state. Intrinsic viscosity measurements and molecular weight (MW) determination using size exclusion chromatography (SEC) confirmed the propensity to undergo chain scission. The radiolytic yields for cross-linking and scission were assessed. Spectroscopic data allow to propose a reasonable mechanism accounting for these observations.
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页数：7
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