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Rheological properties of solutions of graft copolymers of polyvinyl alcohol and polyacrylic acid

  • Science And Technology: Synthetic Fibres
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Fibre Chemistry Aims and scope

Conclusions

The activation energy of viscous flow of systems containing the PVA-PAA graft copolymer is considerably higher than that for solutions of PAA; the activation energy of viscous flow of solutions of mechanical mixtures of PVA and PAA is higher than that of mixtures of PVA with the graft copolymer. This fact is a convincing confirmation of the compatibility of the PVA-(PVA-PAA) graft copolymer system.

The compatibility of this system is also shown by the high stability of the solutions. Thus, 12.5% solutions of the mixture of PVA and the graft copolymer in a ratio of 4/1 do not separate into layers during 3–4 days. The achievement of the compatibility of a mixture of the polymers mentioned by grafting is an important advantage obtained by the modification of polymers by the method of graft copolymerisation.

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Literature cited

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Authors
  1. G. G. Danelyan
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  2. R. M. Livshits
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  3. R. V. Mosina
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Additional information

All-Union Correspondence Institute of the Textile and Light Industries. Translated from Khimicheskie Volokna, No. 2, pp. 27–29, March–April, 1969.

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Danelyan, G.G., Livshits, R.M. & Mosina, R.V. Rheological properties of solutions of graft copolymers of polyvinyl alcohol and polyacrylic acid. Fibre Chem 1, 157–159 (1969). https://doi.org/10.1007/BF00546800

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  • DOI: https://doi.org/10.1007/BF00546800

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