Complex formation between polymethacrylic acid and polyacrylamide

Baranovskii, V.Yu.; Kazarin, L. A.; Litmanovich, A. A.; Papisov, I. M.; Kabanov, V.A.

doi:10.1016/0032-3950(82)90452-x

Cited by 3 publications

(5 citation statements)

References 10 publications

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“…The change of macromolecule adsorption parameters in polymers mixtures can be explained by formation of hydrogen bonds between polyacid and polyacrylamide according the following scheme [5,6]: …”

Section: Resultsmentioning

confidence: 99%

“…The observed phenomena are due to the screening of polar groups of polyacids. At the same time it causes the increasing of macromolecules hydrophobicity and strengthening of inner-and intermolecular hydrophobic interactions in polycomplexes (compaction of macromolecules) [5,6].…”

Section: Tablementioning

confidence: 99%

“…According to [6] the complex formation of polyacids (PMAAc and PAAc) with PAA occurs due to an appearance of hydrogen bonds between carboxyl groups of polyacids and amide groups of PAA. [PAA]=1:1 mol/mol were determined from the minimums and bending points of viscometric and potentiometric titration curves in aqueous solution [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…[PAA]=1:1 mol/mol were determined from the minimums and bending points of viscometric and potentiometric titration curves in aqueous solution [5,6]. In this case the hydrophobic interactions play a significant role in the stabilization of these complexes.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Polycomplexes at Solution/Air Interface

Shaikhutdinov

Abdiyev

Zhursumbayeva

et al. 2017

Eurasian Chem. Tech. J.

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The effect of complex formation of polyacids (polyacrylic (PAAc) and polymethacrylic (PMAAc)) with polyacrylamide (PAA) on their surface properties at solution/air interface has been studied by surface tension, electric conductivity and potentiometric measurements at 293±0.2 K. The relaxation time and surface activity of polycomplexes were calculated from kinetic data on the surface tension. It was found that during complex formation the relaxation time of a surface layer has a maximum and the surface activity of macromolecules is increased. Also the standard free energy of adsorption for PAA and polyacid-PAA polycomplexes were calculated. It is shown that the surface activity and ability to decrease of the water surface tension is less for PMAAc-PAA than for PAAc-PAA. Such anomalous behaviour of PMAAc-PAA polycomplex probably is caused by an excessive strengthening of inner-and intermolecular hydrophobic interactions in macromolecules of PMAAc-PAA polycomplexes due to the presence of α-methyl groups in PMAAc macromolecules. Because of the rebuilding of macromolecule segments of complex by polarity at the interface is becoming a difficult one.

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Section: Resultsmentioning

confidence: 99%

Section: Tablementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Adsorption of Polycomplexes at Solution/Air Interface

Shaikhutdinov

Abdiyev

Zhursumbayeva

et al. 2017

Eurasian Chem. Tech. J.

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“…On the assumption of the curve character and increases of both viscosity and pH, the complex formation occurred primarily because of the hydrophobic interactions and intermolecular hydrogen bonds. 6 As a result, the polyelectrolytic chain obtains an additional charge caused by macromolecular unwrapping. 7 Obviously, the decrease in reduced viscosity at n Ͼ 0.2 may be explained by the contribution of the electrostatic interaction, decreased density of the chain charge, and also by an increase of ionic force attributed to the growth of AK-29 concentration.…”

Section: Complex Formation Between Water-soluble Paa and Ak-29mentioning

confidence: 99%

Immobilization of 2,5‐dimethyl‐4‐benzoyl‐oxypiperidine succinate over polyacrylic acid (PAA) gels. I. Study of interaction between linear and network PAA with succinate of 2,5‐dimethyl‐4‐benzoyl‐oxypiperidine

Zhumagalieva

Beisebekov

Abilov

2005

J of Applied Polymer Sci

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ABSTRACT:The interaction of water-soluble and crosslinked polyacrylic acid (PAA) with a medicinal compound (MC) of 2,5-dimethyl-4-benzoyl-oxypiperidine succinate was investigated. By methods of potentiometry, viscosimetry, and equilibrium swelling it was confirmed that the interaction of linear and network PAA with MC proceeds with complex formation. The degree of complex formation depends on the effect of pH, MC concentration, and degree of polyacid crosslinking.

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