5FLORY P J.Principles of polymer chemistry[M].Ithaca:Cornell University Press,1953:589-591.
6HATAKEYEMA T,YAMAUCHI A,HATAKEYEMA H.Studies on bound water in poly(vinyl alcohol):hydrogel by DSC and FTNMR[J].European Polymer Journal,1984,20(1):61-64.
7XU S M,FENG S,YUE F,et al.Adsorption of Cu(11)ions from an aqueous solution by crosslinked amphoteric starch[J].Journal of Applied Polymer Science,2004,92(2):728-732.
8TRIPTI S,REENA S.Poly(acrylic acid/acrylamide/sodium humate)superabsorbent hydrogels for metal ion/dye adsorption:effect of sodium humate concentration[J].Journal of Applied Polymer Science,2012,125(2):1267-1283.
9OMIDIAN H,HASHEMI S A,SAMMES P G,et al.A model for the swelling of super absorbent polymers[J].Polymer,1998,39(26):6697-6704.
10ELLIOUT J E,MACDONALD M,NIE J,et al.Structure and swelling of poly(acrylic acid)hydrogels:effect of p H,ionic strength,and dilution on the crosslinked polymer structure[J].Polymer,2004,45(5):1503-1510.
