Polymer FractionationManfred J. R. Cantow |
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Page 19
... mixtures [ 39 ] . It is interesting to compare the concentration of the critical point , at which no fractionation occurs , for a polymer solution in a single solvent Eq . ( 19 ) with that of the polymer solution in a solvent mixture Eq ...
... mixtures [ 39 ] . It is interesting to compare the concentration of the critical point , at which no fractionation occurs , for a polymer solution in a single solvent Eq . ( 19 ) with that of the polymer solution in a solvent mixture Eq ...
Page 25
... mixture of a solvent and a poor solvent . In this experiment , the solvent mixture must have acted as a poor solvent and the polymer deposition must have been carried out according to molecular weight by the two - liquid - phase process ...
... mixture of a solvent and a poor solvent . In this experiment , the solvent mixture must have acted as a poor solvent and the polymer deposition must have been carried out according to molecular weight by the two - liquid - phase process ...
Page 353
... MIXTURES A mixture of two homopolymers can be considered as a material with an extremely high degree of chemical inhomogeneity . Fractionation can be carried out according to one of the above - mentioned methods . For the case of ...
... MIXTURES A mixture of two homopolymers can be considered as a material with an extremely high degree of chemical inhomogeneity . Fractionation can be carried out according to one of the above - mentioned methods . For the case of ...
Contents
PREFACE | 3 |
Fractionation Theory | 10 |
Fractionation Efficiency | 27 |
Copyright | |
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according acetate addition amount applied approximation average average molecular weight calculated cell Chem chemical chromatography coefficient column components composition concentration constant containing copolymers curve dependence described determined diffusion discussed distribution curve effect efficiency elution equation equilibrium example experimental experiments Extraction flow fractionation function give given gradient higher increasing inhomogeneity initial integral light limited liquid lower Makromol material means measurements methacrylate method MICHIGAN mixture molecular weight distribution molecules Nature nonsolvent observed obtained operating parameters particles phase Phys plot polydispersity polyethylene Polymer Sci polymerization polystyrene polyvinyl possible precipitation prepared present procedure range ratio Reference relation respect sample sedimentation separation shown shows solubility solution solvent structure Styrene Table technique temperature theoretical theory tion titration turbidimetric turbidity usually values viscosity volume