Fractionation of Synthetic Polymers: Principles and PracticesLu-ho Tung |
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Page 150
... polymer in the polymer - rich phase ( i.e. , the fraction ) is never smaller than that of the polymer in a polymer - lean phase as is exemplified in Fig . 24. And at the most the polymers in both phases have a similar o ' as in the last ...
... polymer in the polymer - rich phase ( i.e. , the fraction ) is never smaller than that of the polymer in a polymer - lean phase as is exemplified in Fig . 24. And at the most the polymers in both phases have a similar o ' as in the last ...
Page 220
... polymer - rich phase is usually larger than that in the polymer - lean phase over the whole range of Pp That is , σ ' of the precipitate , obtained by SPF , is usually higher than that of the polymer in the mother solution . Some ...
... polymer - rich phase is usually larger than that in the polymer - lean phase over the whole range of Pp That is , σ ' of the precipitate , obtained by SPF , is usually higher than that of the polymer in the mother solution . Some ...
Page 227
... polymer - rich phase coagulate into a continuous phase , i.e. , the precipitate settles down completely . Therefore , from a practical point of view , easiness of isolating the polymer - rich phase from two immiscible phases or the time ...
... polymer - rich phase coagulate into a continuous phase , i.e. , the precipitate settles down completely . Therefore , from a practical point of view , easiness of isolating the polymer - rich phase from two immiscible phases or the time ...
Common terms and phrases
adsorption average molecular weight Benzene binary binodals Butanone calculated chain Chem chemical potential chromatogram chromatography cloud-point curve coefficient column component constant critical point cyclohexane decreases dependence determined effect elution equation equilibrium experimental Flory Flory-Huggins Flory-Huggins theory fractionation order fractions obtained free energy function given gradient graft copolymers heterogeneous homopolymers increases interaction parameter intrinsic viscosity Kamide LCST linear Makromol methacrylate Methanol method mixture molecular weight distribution molecules nonsolvent obtained by SPF original polymer phase diagrams phase separation plot poly polydispersity polymer concentration polymer solutions polymer-lean phase polymer-rich phase polymerization polystyrene precipitation ratio refractionation sample Schulz Schulz method Schulz-Zimm distribution shown in Fig solubility solvent SPF and SSF spinodal styrene technique theoretical theory thermodynamic titrations turbidity titrations virial virial coefficient viscosity volume fraction weight fraction Wesslau distribution Wesslau-type polymer XOXO zone spreading