Phase transitions in solutions of hydroxypropoyl cellulose and cyanoethyl cellulose |
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| Authors: | S. A. Vshivkov E. V. Rusinova L. I. Kutsenko |
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| Affiliation: | (1) Ural Sate University, pr. Lenina 51, Yekaterinburg, 620083, Russia;(2) Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol’shoi pr. 31, St. Petersburg, 199004, Russia |
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| Abstract: | LC phase transitions in mixtures of cyanoethyl cellulose and hydroxypropyl cellulose with different solvents have been studied by the cloud point and polarization microscopy methods and polarization photoelectric measurements. It has been found that, as the solvent polarity is decreased and the molecular mass of a polymer is increased, boundary curves delimiting the regions of isotropic and anisotropic solutions shift to the region of lower concentrations. |
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