Polymer FractionationManfred J. R. Cantow |
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Page 263
... coefficient from the area - height ratio , which has been shown by Baldwin [ 14 ] and Fujita [ 16 ] to be far ... Sedimentation Coefficients Sedimentation coefficients are dependent upon the molecular weight of the sedimenting solute ...
... coefficient from the area - height ratio , which has been shown by Baldwin [ 14 ] and Fujita [ 16 ] to be far ... Sedimentation Coefficients Sedimentation coefficients are dependent upon the molecular weight of the sedimenting solute ...
Page 270
... coefficients describe a distribution of sedimentation coefficients free of diffusional effects . Such a corrected curve is illustrated in Fig . 7. Although Gosting [ 45 ] showed that there is a range of time in which g * ( s ) is a ...
... coefficients describe a distribution of sedimentation coefficients free of diffusional effects . Such a corrected curve is illustrated in Fig . 7. Although Gosting [ 45 ] showed that there is a range of time in which g * ( s ) is a ...
Page 271
... sedimentation coefficients for poly- styrene S105 in cyclohexane at 35 ° C , the curves having been previously corrected for pressure and diffusion effects . Dashed line represents the true distribution of sedimentation coefficients ...
... sedimentation coefficients for poly- styrene S105 in cyclohexane at 35 ° C , the curves having been previously corrected for pressure and diffusion effects . Dashed line represents the true distribution of sedimentation coefficients ...
Contents
Polydispersity of High Polymers | 3 |
Fractionation Theory | 10 |
Fractionation Efficiency | 27 |
Copyright | |
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acetone acid Acta applied average molecular weight Benzene Biochem calculated Cantow cell cellulose centrifugal Chem chemical inhomogeneity Chim chloride chromatography Claesson column components composition constant copolymers cross-linked crystalline cyclohexane density dependence Desreux determined diffusion dilute distribution curve distribution function effect elution equation equilibrium experimental Extraction Flory flow curve Giesekus gradient graft copolymer heterogeneity high polymers increasing integral distribution investigated linear liquid low molecular weight Makromol measurements Methanol methyl methacrylate mixture molecular weight distribution molecules monomer nonsolvent obtained optical parameters particles phase Phys plot polydispersity polyethylene polymer concentration Polymer Sci polymer solution polymerization polypropylene polystyrene polyvinyl acetate polyvinyl alcohol procedure ratio refractive index report of Farbenfabriken sample Section sedimentation coefficient separation shear shown in Fig solubility solvent solvent-nonsolvent species Styrene technique temperature theoretical tion titration Toluene turbidity turbidity curves ultracentrifuge values vinyl acetate viscosity volume weight fraction