Polymer Fractionation

Polymer Fractionation

1st Edition - January 1, 1967

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  • Editor: Manfred J. R. Cantow
  • eBook ISBN: 9781483271705

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Polymer Fractionation focuses on the processes, reactions, and transformations involved in polymer fractionation, including chromatography, titration, and sedimentation. The selection first offers information on theoretical considerations and fractional precipitation. Topics include polydispersity of high polymers, phase relations for polydisperse systems, fractionation theory and efficiency, and fractionation by solvent evaporation. The manuscript then takes a look at fractional solution, chromatographic fractionation, and gel permeation chromatography. The book elaborates on thermal diffusion and turbidimetric titration, as well as methods of fractionation, studies of the variables, outline of the method and range of application, and elaboration of the method. The text then ponders on sedimentation, isothermal diffusion, and summative fractionation. Discussions focus on mathematical interpretation of summative data, experimental methods for the determination of diffusion constants, and methods for the determination of the diffusion coefficient distribution. The selection is a valuable source of information for readers interested in polymer fractionation.

Table of Contents

  • Contents

    List of Contributors v


    Chapter A. Theoretical Considerations

    I. Polydispersity of High Polymers

    II. Phase Relations for Polydisperse Systems

    III. Fractionation Theory

    IV. Fractionation Efficiency


    Chapter B.l. Fractional Precipitation

    I. Nonsolvent Addition Method

    II. Fractionation by Solvent Evaporation

    III. Fractionation by Cooling


    Chapter B.2. Fractional Solution

    I. Introduction

    II. Theoretical Considerations

    III. Experimental Methods

    IV. Factors in Column Elution—Guiding Principles for Experimental Fractionation

    V. Comparison between Fractional Solution Methods

    VI. Possible Areas for Future Research


    Chapter B.3. Chromatographic Fractionation

    I. Introduction

    II. Apparatus

    III. Column Operation

    IV. Specific Fractionations

    V. Theoretical Considerations and Comparison with Other Methods

    VI. Preparatory-Scale Fractionation


    Chapter B.4. Gel Permeation Chromatography

    I. Introduction

    II. History of Gel Permeation Chromatography

    III. The Theory of Gel Permeation Chromatography

    IV. The Gels

    V. Experimental Technique

    VI. Evaluation of Data


    Chapter B.5. Thermal Diffusion

    I. History

    II. Basic Theory

    III. Studies of the Variables

    IV. Polymer Fractionations

    V. Methods of Fractionation


    Chapter C.l. Turbidimetric Titration

    I. Introduction

    II. Outline of the Method and Range of Application

    III. Elaboration of the Method

    IV. Apparatus

    V. Evaluation

    VI. Application


    Chapter C.2. Sedimentation

    I. Introduction

    II. Theory

    III. Experimental

    IV. Sedimentation Velocity

    V. Sedimentation Equilibrium


    Chapter C.3. Isothermal Diffusion

    I. Introduction

    II. Theory: The Differential Equation of Diffusion and Three Solutions

    III. Experimental Methods for the Determination of Diffusion Constants

    IV. Theory : Determination of Molecular Heterogeneity

    V. Methods for the Determination of the Diffusion Coefficient Distribution

    VI. Experimental Results

    VII. Critical Remarks


    Chapter C.4. Summative Fractionation

    I. The Summative Method

    II. Mathematical Interpretation of Summative Data

    III. Precipitating Power of Varying Compositions of Acetone-Water Precipitants


    Chapter C.5. Rheological Methods

    I. Introduction to the Problem

    II. Parameter Methods

    III. Evaluation of Flow Curves

    IV. Evaluation of Relaxation Measurements

    V. Miscellaneous Methods


    Chapter D. Chemical Inhomogeneity and its Determination

    I. Causes for the Chemical Inhomogeneity of Macromolecular Compounds

    II. Determination of Chemical Inhomogeneity

    III. Quantitative Description of Chemical Inhomogeneity

    IV. Literature Survey


    Chapter E. Treatment of Data

    I. Introduction

    II. Methods of Expressing Molecular Weight Distribution

    III. Calculation of Molecular Weight Distribution from Fractionation Data

    IV. Calculation of Molecular Weight Distribution from Average Molecular Weight Measurements

    V. Comparison of Methods

    Appendix: Numerical Illustrations


    Chapter F. The Numerical Analysis and Kinetic Interpretation of Molecular Weight Distribution Data

    I. Introduction

    II. On the Prediction of Molecular Weight Distributions from Kinetic Schemes

    III. Numerical Methods in the Handling of Molecular Weight Distribution Data

    Appendix to Chapter F


    Chapter G. Additional Methods of Fractionation



    Appendix to Chapter G

    References to Appendix

    Author Index

    Subject Index

Product details

  • No. of pages: 540
  • Language: English
  • Copyright: © Academic Press 1967
  • Published: January 1, 1967
  • Imprint: Academic Press
  • eBook ISBN: 9781483271705

About the Editor

Manfred J. R. Cantow

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