Study of the mechanism of degradation of aqueous solutions of polyethylene oxide and polyacrylamide in a hydrodynamic field

Stupnikova, T.V.; Makogon, B. P.; Vyshkina, T.V.; Povkh, I. L.

doi:10.1016/0032-3950(88)90429-7

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B Branching During Mechanical Degradation Of Polyacrylamides3

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“…Stupnikov et al . have also suggested that branching contributes significantly to the observed physical changes in degraded polyacrylamide solutions. Under their experimental conditions, it was suggested that macromolecular radicals are involved in a number of reactions including hydrogen abstraction, disproportionation, combination, and other reactions with acceptors such as oxygen ultimately leading to the introduction of branching.…”

Section: B Branching During Mechanical Degradation Of Polyacrylamidesmentioning

confidence: 98%

“…Some authors 65,149,150 have suggested that there is not a significant reduction in the molecular weight distribution in degraded samples but rather macromolecular chain scission leads to branching. Moan et al 149 have measured the absolute molecular weight distribution before and after passage through a porous medium of a partially hydrolyzed polyacrylamide (anionic) solution.…”

Section: B Branching During Mechanical Degradation Of Polyacrylamidesmentioning

confidence: 99%

“…Some authors ,, have suggested that there is not a significant reduction in the molecular weight distribution in degraded samples but rather macromolecular chain scission leads to branching. Moan et al .…”

Section: B Branching During Mechanical Degradation Of Polyacrylamidesmentioning

confidence: 99%

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