Complex-formation in aqueous solutions of mixtures of polyacrylic acid and polyvinylalcohol and its copolymers

Bel’nikevich, N. G.; Budtova, Tatiana; Ivanova, N. V.; Panarin, Ye.F.; Panov, Yu.N.; Frenkel, S.Ya.

doi:10.1016/0032-3950(89)90021-x

Cited by 10 publications

(13 citation statements)

References 3 publications

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“…Similar measurements were performed at 30°С. The curves obtained are typical of non-Newtonian fl uids [8]. With an increase in the Zosterin fraction in the blend, the viscosity decreases, which is due to higher molecular mass of cellulose ethers compared to Zosterin.…”

Section: Resultssupporting

confidence: 61%

Properties of solutions and films of blends of water-soluble cellulose ethers with Zosterin

et al. 2014

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Viscosity characteristics of dilute and moderately concentrated solutions of blends of methyl cellulose, hydroxyethyl cellulose, and carboxymethyl cellulose with Zosterin were studied. Composite fi lms were prepared from solutions of the polymer blends; their IR spectra and physicomechanical and thermomechanical properties were studied. The region of thermodynamic compatibility of cellulose ethers with Zosterin was determined by solvent vapor sorption.

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Section: Resultssupporting

confidence: 61%

Properties of solutions and films of blends of water-soluble cellulose ethers with Zosterin

et al. 2014

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“…The negative deviation of the viscosity from the additive law suggests either the lack of interpolymer interaction in the solution or the formation of comb-or star-shaped intermolecular complexes [20]. Here we should keep in mind that the interpolymer interaction proceeds through local contacts caused by the presence of groups capable of a given type of interaction.…”

Section: Methodsmentioning

confidence: 99%

Properties of Solutions and Films of Fibroin-Poly-3-Hydroxybutyrate Polymer Blends

2005

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Solutions of fibroin3poly-3-hydroxybutyrate polymer blends in hexafluoro-2-propanol and films obtained after removal of the solvent are experimentally studied at various polymer ratios.Bombyx mori silk fibroin is a biopolymer with unique chemical, physical, and mechanical characteristics [1]. Silk is of a great interest not only as a textile material. It can also be used for biotechnological and biomedical purposes in manufacture of suture materials, contact lenses, biosensors, etc. Silk fibroin is used as fibers, gels, powders, and porous membranes. However, a significant drawback of films and other goods from regenerated fibroin is their brittleness. The mechanical characteristics of fibroin may be improved through blending with other natural or synthetic polymers [238]. Blends are prepared by simultaneous dissolution of polymers in an appropriate solvent or by grinding.

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“…But the information about the influence of ionic strength on the complexation due to H-bonds formation is insufficient and contradictory. Recently Frenkel's group have reported that increasing of ionic strength depresses the complexation of PAA with poly(vinyl alcohol) 12) and oxyethylcellulose 13) . But according to other authors 14,15) the increasing of ionic strength is favorable for complex formation.…”

Section: Resultsmentioning

confidence: 99%

Complex formation between poly(vinyl ether) of ethylene glycol and poly(acrylic acid) in aqueous and organic solutions

Mun¹,

Nurkeeva

Khutoryanskiy

1999

Macromol. Chem. Phys.

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SUMMARY: Interpolymer reactions between poly(acrylic acid) and poly(vinyl ether) of ethylene glycol were studied by viscometric and spectroturbidimetric methods in aqueous and organic solutions of different nature. It is shown that the formation of interpolymer complexes strongly depends on the strength of the polymer-solvent interaction. A decrease of the thermodynamical quality of the solvents should be favorable for the complexation process.

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Complex-formation in aqueous solutions of mixtures of polyacrylic acid and polyvinylalcohol and its copolymers

Cited by 10 publications

References 3 publications

Properties of solutions and films of blends of water-soluble cellulose ethers with Zosterin

Properties of solutions and films of blends of water-soluble cellulose ethers with Zosterin

Properties of Solutions and Films of Fibroin-Poly-3-Hydroxybutyrate Polymer Blends

Complex formation between poly(vinyl ether) of ethylene glycol and poly(acrylic acid) in aqueous and organic solutions

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