5Yoshida R,Sakai K,Ukano T,et al.Surface-modulated skin layers ofthermal responsive hydrogels as on-off switches:I Drug release[J].Biomater Sci.Polym.Ed.,1991,3(2):155-162.
6Woerly S.Porous hydrogels for neural tissue engineering[J].Malerials Science Forum,1997,250:53-68.
7Watase M J.Rheclogical properties of an anomalous poly (vinyl alcohol) gel[J].Chem.Soc.Jpn.,1983,(9):973-978.
8Homma M J,Yoshimi S,Yoshio N.Evaluation of optimum condition for designing high-performance electro-driven polymer hydrogel systems[J].Appl.Polym.Sci.,2000,75(1):111-118.
9Hirai T,Maruyama H,Suzuki T,et al.Shape memorizing properties of a hydrogel of poly(vinyl alcohol)[J].Journal of applied polymer science,1992,15(10):1819-1824.
10Jiang S.Study on PVA hydrogel erosslinked by epichlorohydrin[J].J.Appl.Polym.Sci.,1992,40(4):783-786.
