The preparation and application of cellulose graft poly(4-vinyl pyridine/butyl methacrylate)

The cellulose was grafted homogeneously with 4-vinyl pyridine(4Vp)and butyl methacrylate(BMA) through radical polymerization in ionic liquid 1-allyl-3-methylimidazolium chloride(AMIMCl)as reaction medium.APS was used as the initiator in the presence of a cross-linker MBA.The structure of the cellulose graft poly(4-vinyl pyridine/butyl methacrylate)copolymers were characterized by means of FT-IR.The effects of the graft copolymerization conditions,namely temperature,reaction period,the dosage of APS and MBA,and the mass ratio of monomers on the grafting ratio were investigated.These resulting copolymers were shown to behave as good sorbents for Cu(Ⅱ),Pb(Ⅱ),Cd(Ⅱ)ions and 2,4-dichorophenol(2,4-DCP).The maximum adsorption capacity of Cu(Ⅱ),Pb(Ⅱ),Cd(Ⅱ)ions and 2,4-DCP were found to be 798.8,251.9,41.27,31.27 and 22.93mg/g,respectively.