Investigations of aqueous solutions of dextran-poly(ethylene glycol) and dextran-poly(vinyl pyrrolidone) near the binodial curve

Date

1996-05-01

Author

Salamova, UR
Masimov, AA
Ozer, M

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The dependences of the refractive indices of aqueous solutions of dextran (D), poly(ethylene glycol) (PEG), and poly(vinyl pyrrolidone) (PVP), and D-PEG and D-PVP mixtures, on the polymer concentration has been investigated in order to study structural and conformational changes as a function of the increasing polymer concentration. It is shown that in contrast to solutions of single polymers, conformational changes are not observed in aqueous solutions of mixed polymers, even at high concentrations, and the phase separation which is observed is due to a change of structure or state of the water. We have determined the rates of the processes of the phase separation in these aqueous biphasic polymer systems. Copyright (C) 1996 Elsevier Science Ltd.

Subject Keywords

Dextran/PVP aqueous solution, Dextran/PEC aqueous solution, Phase separation

URI

https://hdl.handle.net/11511/66398

Journal

POLYMER

DOI

https://doi.org/10.1016/0032-3861(96)85864-2

Collections

Department of Chemistry, Article

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Citation Formats

U. Salamova, A. Masimov, and M. Ozer, “Investigations of aqueous solutions of dextran-poly(ethylene glycol) and dextran-poly(vinyl pyrrolidone) near the binodial curve,” POLYMER, pp. 2191–2194, 1996, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66398.