pH-effects in the complex formation of polymers I. Interaction of poly(acrylic acid) with poly(acrylamide)

pH-effects in the complex formation of polymers I. Interaction of poly(acrylic acid) with poly(acrylamide)

The effects of polymer concentration, molecular weight of poly(acrylic acid) (PAA), addition of sodium, potassium, ammonium and copper (II) chlorides on the complex formation ability of the system PAA–poly(acrylamide) (PAAM) have been studied in aqueous solutions. The critical pH values of the compl...

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Bibliographic Details
Published in:European polymer journal Vol. 39; no. 8; pp. 1687 - 1691
Main Authors: Mun, Grigoriy A., Nurkeeva, Zauresh S., Khutoryanskiy, Vitaliy V., Sarybayeva, Gulshat S., Dubolazov, Artem V.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01-08-2003
Elsevier
Subjects:
Applied sciences
Exact sciences and technology
Hydrogen bonding
Interpolymer complexes
Organic polymers
Physicochemistry of polymers
Poly(acrylamide)
Poly(acrylic acid)
Properties and characterization
Solution and gel properties
Poly(acrylic acid)
Interpolymer complexes
Poly(acrylamide)
Hydrogen bonding
Ternary complex
Experimental study
Molecular weight property relation
Polyelectrolyte
Ionic strength
Acrylic acid polymer
pH
Acrylamide polymer
Copper II Chlorides
Interpolymer
Aqueous solution
Saline solution
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Summary:The effects of polymer concentration, molecular weight of poly(acrylic acid) (PAA), addition of sodium, potassium, ammonium and copper (II) chlorides on the complex formation ability of the system PAA–poly(acrylamide) (PAAM) have been studied in aqueous solutions. The critical pH values of the complexation were determined in different conditions. The complex formation ability of PAAM is compared with other non-ionic polymers. It was shown that an increase in polymers concentration, molecular weight of PAA and ionic strength favours the complexation and shifts the critical pH values to the higher pH region. An addition of CuCl 2 to the mixture of two polymers enhances the complexation drastically due to the formation of triple complexes.
ISSN:0014-3057
1873-1945
DOI:10.1016/S0014-3057(03)00065-X