Hydrodynamic properties and equilibrium rigidity of oxypropyl cellulose molecules

The hydrodynamic properties—characterisctic viscosities [ν], translational diffusion D and sedimentation S 0— of samples and fractions of oxypropyl cellulose have been investigated in a number of solvents. The relations linking the magnitudes [ν], D and S 0 with the degree of polymerization have bee...

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Bibliographic Details
Published in:Polymer science USSR 1990, Vol.32 (1), p.41-47
Main Authors: Korneyeva, Ye.V., Shtennikova, I.N., Shibayev, V.P., Klenin, S.I., Kolbina, G.F., Yekayeva, I.V., Didenko, S.A.
Format: Article
Language:English
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Summary:The hydrodynamic properties—characterisctic viscosities [ν], translational diffusion D and sedimentation S 0— of samples and fractions of oxypropyl cellulose have been investigated in a number of solvents. The relations linking the magnitudes [ν], D and S 0 with the degree of polymerization have been established. From the data on translational diffusion and viscometry the authors have determined the equilibrium rigidity of the macromolecules: the size of the statistical segment is (210–240) × 10 −8cm. The high rigidity of the macromolecules determines the possibility of the formation of the mesophase in solutions and melts of oxypropyl cellulose.
ISSN:0032-3950
1878-268X
DOI:10.1016/0032-3950(90)90044-7