A mild method of amine-type adsorbents syntheses with emulsion graft polymerization of glycidyl methacrylate on polyethylene non-woven fabric by pre-irradiation

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• 作者：Hongjuan Ma ; Side Yao ; Jingye Li ; Changqing Cao ; Min Wang
• 关键词：Graft polymerization ; PE non-woven fabric ; Glycidyl methacrylate (GMA) ; Amine-type adsorbent ; Copper ; Uranium
• 刊名：Radiation Physics and Chemistry
• 出版年：2012
• 出版时间：September, 2012
• 年：2012
• 卷：81
• 期：9
• 页码：1393-1397
• 全文大小：626 K

文摘

A mild pre-irradiation method was used to graft glycidyl methacrylate (GMA) onto polyethylene (PE) non-woven fabric (NF). The polymer was irradiated by electron beam in air atmosphere at room temperature. The degree of grafting (D_g) was determined as a function of reaction time, absorbed dose, monomer concentration and temperature. After 30 kGy irradiation, with 5 % GMA, surfactant Tween 20 (Tw-20) of 0.5 % at 55 ¡ãC for 15 min, the trunk polymer was made grafted with a D_g of 150 % . Selected PE-g-PGMA of different D_g was modified with aminated compounds such as ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and tetraethylenepentamine (TEPA). The obtained amine-type adsorbents were prepared to remove copper and uranium ions from solution. It was shown that at least 90 % of copper and 60 % of uranium with the initial concentration from 3 to 1000 ppb can be removed from water.