1998
DOI: 10.1021/ma980118o
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Diffusion and Flow Birefringence of Poly(naphthoyleneimide benzimidazole) in Concentrated Sulfuric Acid

Abstract: The effect of changes in chemical structure on the equilibrium and kinetic behavior is examined for fully cyclic poly(naphthoyleneimide benzimidazole) (PNI) molecules in dilute solution in 96% sulfuric acid. With this aim, hydrodynamic and dynamo-optical properties were analyzed over a wide range of molecular weight from 6.7 × 10 3 to 2.5 × 10. 5 The M dependence of the translational diffusion coefficient, D, the shear optical coefficient, ∆n/∆τ, the intrinsic orientation of the macromolecules in the flow, [ /… Show more

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References 28 publications
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