Polymer FractionationManfred J. R. Cantow |
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Page 162
... particles should be removed . The fine particles tend to obstruct the flow and are removed by stirring a suspension vigorously , allowing it to settle for a few minutes , and then decanting the turbid supernatant . This pro- cedure may ...
... particles should be removed . The fine particles tend to obstruct the flow and are removed by stirring a suspension vigorously , allowing it to settle for a few minutes , and then decanting the turbid supernatant . This pro- cedure may ...
Page 215
... particles to be made . Provided the particles are approximately spherical and the difference of the refractive indexes between the particles and the suspending agent is not too great , it is possible to determine a function f ( Z ) ...
... particles to be made . Provided the particles are approximately spherical and the difference of the refractive indexes between the particles and the suspending agent is not too great , it is possible to determine a function f ( Z ) ...
Page 217
... particles . According to an investigation by Patat and Träxler [ 51 ] the solvent - to - precipitate ratio is independent of both the molecular weight of the precipitated particles and y and corresponds to the y value at which the ...
... particles . According to an investigation by Patat and Träxler [ 51 ] the solvent - to - precipitate ratio is independent of both the molecular weight of the precipitated particles and y and corresponds to the y value at which the ...
Contents
Polydispersity of High Polymers | 3 |
Fractionation Theory | 10 |
Fractionation Efficiency | 27 |
Copyright | |
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Common terms and phrases
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