Polymer FractionationManfred J. R. Cantow |
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Page 80
... column , is fractionated by elution , has made it possible to fractionate a polymer in a relatively short time . The method lends itself to automation and has been successfully scaled up [ 33 ] to fractionate a 50 - gm sample into ...
... column , is fractionated by elution , has made it possible to fractionate a polymer in a relatively short time . The method lends itself to automation and has been successfully scaled up [ 33 ] to fractionate a 50 - gm sample into ...
Page 97
... columns where the objective is usually to determine molecular weight distribution . Larger scale columns designed to isolate fractions of sufficient size for other subsequent tests are discussed in Section VI . II . Apparatus A. COLUMN ...
... columns where the objective is usually to determine molecular weight distribution . Larger scale columns designed to isolate fractions of sufficient size for other subsequent tests are discussed in Section VI . II . Apparatus A. COLUMN ...
Page 162
Manfred J. R. Cantow. 2. Packing of Columns Arrangement of the packing in the column is a very real design factor . Unlike the practice in general chromatography , gel columns must be packed wet , and care must be taken that air never ...
Manfred J. R. Cantow. 2. Packing of Columns Arrangement of the packing in the column is a very real design factor . Unlike the practice in general chromatography , gel columns must be packed wet , and care must be taken that air never ...
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