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- W2040930070 abstract "Reversible gel formation induced by ion complexation has been studied in the case of interaction of cupric ions with guargumgraft-acrylamide (G-g-Am). Guargum-graft-acrylamide has been found to be highly shear and biodegradation resistant, a drag reducer and a flocculant for metallic ions. This latter aspect induced the present investigation. The interaction of cupric ions with G-g-Am has been investigated spectroscopically, conductometrically, and by pH titration curves. All these experiments suggest the formation of a complex between copper and G-g-Am system. The cross-linking mechanism involved in the formation of gels has been investigated. Carboxylic acid groups present in the polymer in small amounts play an important role in the complexation with cupric ions. The spectral and differential scanning calorimetric investigations support the above finding. Finally, microstructural investigations have been carried out using scanning electron microscopy." @default.
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- W2040930070 date "1993-08-01" @default.
- W2040930070 modified "2023-09-27" @default.
- W2040930070 title "Reversible gel formation induced by ion complexation involving a cupric ion-guargum-graft-acrylamide interaction" @default.
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- W2040930070 doi "https://doi.org/10.1016/0167-577x(93)90081-8" @default.
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