Polymer FractionationManfred J. R. Cantow |
From inside the book
Results 1-3 of 70
Page 6
... equilibrium . The thermodynamic state of a polymer solution can be described by the free energy of mixing AG . The solution is unstable and separates into two or more phases , if AG is not a monotonous function of the compositions . We ...
... equilibrium . The thermodynamic state of a polymer solution can be described by the free energy of mixing AG . The solution is unstable and separates into two or more phases , if AG is not a monotonous function of the compositions . We ...
Page 38
... equilibrium values , but also the molecular weight distributions within the two phases must approximate the equilibrium distributions . To achieve this result in a fractionation step , it is obvious that the polymer molecules must be ...
... equilibrium values , but also the molecular weight distributions within the two phases must approximate the equilibrium distributions . To achieve this result in a fractionation step , it is obvious that the polymer molecules must be ...
Page 279
... equilibrium . Several methods have been proposed by Rinde [ 68 ] and Wales [ 64 ] for the solution to this relation , but the results have generally been considered as unsatisfactory . Another procedure for determining the molecular ...
... equilibrium . Several methods have been proposed by Rinde [ 68 ] and Wales [ 64 ] for the solution to this relation , but the results have generally been considered as unsatisfactory . Another procedure for determining the molecular ...
Contents
Polydispersity of High Polymers | 3 |
Fractionation Theory | 10 |
Fractionation Efficiency | 27 |
Copyright | |
49 other sections not shown
Other editions - View all
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 constant cross-linked crystalline cyclohexane density dependence Desreux determined differential diffusion dilute distribution curve distribution function effect elution equation equilibrium evaluation experimental Extraction Flory flow curve Giesekus gradient graft copolymer heterogeneity high molecular weight high polymers integral distribution intrinsic viscosity 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 Sci polymer solution polymerization polypropylene polystyrene polyvinyl acetate procedure ratio refractive index report of Farbenfabriken sample Section sedimentation coefficient separation shear shown in Fig solubility solvent solvent-nonsolvent Styrene technique temperature theoretical tion titration Toluene turbidity turbidity curves ultracentrifuge V₁ values vinyl acetate volume weight fraction