2Tan R A, Wang W, Hu G H, et al. Functionalization of polypropylene with fluorinated acrylic monomers in the molten state. Eur Polym J, 1999,35:1979.
3Xie X M,Chen N H, Guo B H, Li S. Study of multi- monomer melt- grafting onto polypropylene in an extruder. Polym Int, 2000,49:1677.
4Ramesh Rengaxajan, Vetkav R. Parameswaran, Sunggyu Lee. N. M. R. Analysis of polypropylene- maleic anhydride copolymer. Polymer, 1990,31 : 1703 - 1706.
9Kaur I, Misra BN, Gupta A, Chauhan GS. Graft copolymerization of 4 - vinyl pyridine and methyl acrylate onto polyethylene film by radiochemical method. J Appl Polym Sci, 1998,69:599- 610.
10Sun T, Xu P, Liu Q, Xue J, Xie W. Graft oopolymerization of methaerylie acid onto carboxymethyl chitosan. Eur Poly J, 2003,39:189 - 92.