Drag reduction and molecular structure.
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C. A. Parker; Thelma A. Joyce
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Article
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1974
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John Wiley and Sons
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English
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The structure of polyethylenimine in aqueous and ethanolic solutions was investigated by measuring the fluorescence polarization of dansyl conjugates. In aqueous solutions, all polyethylenimines, whatever their molecular weight, are associated into large aggregates containing rotating units having r