Overview

The fractionation of polymers via differences in solubility, especially in a preparative scale, is an important presupposition for the determination of molecular weight-dependent polymer properties. In this book, a variety of fractionation methods, their theoretical base, applications, equipment, preparatory and fractionation steps are discussed. The text is focused on practical aspects of the carrying-out of polymer fractionations. Each fractionation procedure is completed by practical examples. Appendices and glossary are a useful supplement. The book will enable polymer chemists, physicists and technicians as well as material scientists and students in these fields to choose the optimal fractionation variant for their individual problems.

Full Product Details

Author:   Frieder Francuskiewicz
Publisher:   Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
Imprint:   Springer-Verlag Berlin and Heidelberg GmbH & Co. K
Edition:   illustrated edition
Weight:   0.630kg
ISBN:  

9783540575399

ISBN 10:   3540575391
Pages:   217
Publication Date:   30 August 1994
Audience:   College/higher education ,  Professional and scholarly ,  Postgraduate, Research & Scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   Out of stock  
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Table of Contents

1 Introduction.- 2 The Size of Polymer Molecules — Mean Values and Distributions of the Molecular Weight.- 3 Dissolution and Precipitation of Polymers.- 4 Basic Principles of Fractionation Procedures.- 5 Precipitation Fractionation.- 6 Extraction Fractionation.- 7 Gradient-Elution Fractionation.- 8 Baker-Williams Fractionation.- 9 Trouble Shooting and Large-Scale Techniques in Column Fractionations.- 10 Temperature Rising Elution Fractionation.- 11 Partition Fractionation.- 12 Cross Fractionation.- 13 Outlook.- Table A1 Calculation of solubility parameters according to the increment method proposed by Small.- Table A2 Solubility parameters and physical constants of solvents.- Table A3 Solvents and nonsolvents for polymers ordered according to solubility parameters.- Table A4 Simple characteristics of some soluble polymers.- Table A5 Generalized Schulz distribution.- Table A6 Tung distribution.- Table A7 Logarithmic normal distribution (Wesslau distribution).- Table A8 Phase relations for simple one-step and multi-step extractions.- Table A9 Generation of logarithmic solvent/nonsolvent gradients in a stepwise procedure by use of small mixing vessels.- Table A10 Compilation of fractionation procedures in the literature.- Glossary of Terms.

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