Hydrodynamic, dynamo-optical and conformational characteristics of molecules of phenyl-substituted para-aromatic polyesters

Hydrodynamic, optical and conformational properties of mono-phenyl-substituted para-aromatic polyester (PAPE) in tetrachloroethane and dichloroacetic acid have been studied by sedimentation-diffusion analysis, viscometry and flow birefringence. The effect of phenyl side-groups on the equilibrium rig...

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Bibliographic Details
Published in:European polymer journal 1992, Vol.28 (1), p.91-96
Main Authors: Tsvetkov, V.N., Bushin, S.V., Andreeva, L.N., Smirnov, C.P., Belyaeva, E.V., Bilibin, A.Yu, Stepanova, A.R.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physical Sciences
Physicochemistry of polymers
Polymer Science
Properties and characterization
Science & Technology
Solution and gel properties
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Summary:Hydrodynamic, optical and conformational properties of mono-phenyl-substituted para-aromatic polyester (PAPE) in tetrachloroethane and dichloroacetic acid have been studied by sedimentation-diffusion analysis, viscometry and flow birefringence. The effect of phenyl side-groups on the equilibrium rigidity of PAPE chains was analysed. On the basis of these data, the energies of hindrance to intramolecular rotations about the ester bonds of various phenyl-substituted PAPEs were estimated.
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(92)90242-T