4C L Mccormick;C Brent Johnsion. Water-soluble copolymers: Xll copymers of acrylamide with sodium-3-acrylamido-3-methylbutanoathesis and charactenization[J].J. Polym .Sci.,1986,24:2635-2645.
5R G Ryles. Chemical stability limits of water-soluble polymer used in EOR[J].SPE Reserving Engineering,1988,2:23-34.
6C J McDonald,R H Beaver.The marnnich reaction of polyacrylamide[J].Macromolecules,1979,12,(2):203-208.
