Polymer Flooding Agent CMC/P(AM-DMDAAC) Formed Through Interpolyelectrolyte Complexation

Abstract

Abstract: Oppositely-charged polyelectrolytes, i.e., polyanion cellulose methyl carboxyl(CMC) and polycation poly(acrylamide-dimethyldiallyammonium)[(P(AM-DMDAAC)] were used to form interpolyelectrolyte complexed solution CMC/P(AM-DMDAAC). UV spectra and ionic conductivity measurements showed that polyanion CMCcould complex with polycation P(AM-DMDAAC) in aqueous solution through Coulomb forces. The complex with suitable complexing density is water soluble. The apparent viscosity of the complexed solution increases significantly due to the increased hydrodynamic volume, reaching97.4 mPa·s, 5.2 times that of CMCsolution and 90 times that of P(AM-DMDAAC) solution respectively. The particular structure of complexation endows the complexed solution with better viscosity durability under the condition of high temperature and high shear rate than its constituents polymer solutions.

Key words: Interpolyelectrolyte complexation, Polyelectrolyte, Polymer flooding agent, Viscosity

CLC Number:

O631
TQ325

TrendMD:

CHEN Zhe, WANG Qi . Polymer Flooding Agent CMC/P(AM-DMDAAC) Formed Through Interpolyelectrolyte Complexation[J]. Chem. J. Chinese Universities, 2001, 22(9): 1597.

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Polymer Flooding Agent CMC/P(AM-DMDAAC) Formed Through Interpolyelectrolyte Complexation

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