Synthesis of amine-type adsorbents with emulsion graft polymerization of 4-hydroxybutyl acrylate glycidylether

Ma, H.; Hoshina, Hiroyuki; Seko, Noriaki

In this paper, a pre-irradiation method was used for emulsion graft polymerization of 4-hydroxybutyl acrylate glycidylether (4-HB) onto polyethylene/polypropylene (PE/PP) nonwoven fabric (NF). The degree of grafting (D) which can be calculated by weight increment was determined as a function of reaction time, irradiation dose, and monomer concentration. After 30 kGy irradiation, with 4-HB concentration of 5%, surfactant Span 20 of 0.5% at 40 C for 2 h, the trunk polymer was made grafted at a D of 135%. After modified by ethylenediamine (EDA) the 4-HB-grafted PE/PP nonwoven fabric showed high adsorption capability of Cu, Pb and Zn. Compared with glycidyl methacrylate (GMA) which is a typical functional monomer for graft polymerization, 4-HB-grafted adsorbent exhibited not only better mechanical property but also higher adsorption capacity of Cu and Pb.