A. Basic Facts. Introduction. Chromatographic techniques. Foundations and fundamental concepts of chromatography. Macromolecules: size, constitution, configuration, conformation. Interactions between polymers and solvents. Adsorption of polymers. B. Concepts of Chromatography: Mechanisms and Materials. Adsorption chromatography. Separation by size exclusion. Chromatographic separation by partition. Support materials. Inorganic supports. Organic supports. Other mechanisms of separation. C. Chromatography under Real Conditions. Gradient technique. The influence of kinetic factors. Special problems. Techniques in macromolecular elution chromatography. D. Applications. Adsorption chromatography of polymers - experimental parameters and results. Experimental parameters and results of size exclusion chromatography. Experimental parameters and results of precipitation chromatography. Thin-layer chromatography. Bibliography. Sources. Subject Index.
The main subject of this book is the characterization of plastics. To a high degree the properties of these polymers depend on the distribution of the molar mass and of other structural features, and small deviations frequently have a great effect. Therefore the characterization of polymers cannot be restricted to the determination of mean values but must yield information on these distributions. Using classical methods, the analytical fractionation of polymer homologues and structurally isomeric polymers is extremely time-consuming. Therefore, efficient chromatographic techniques are being increasingly employed in modern polymer characterization.
In the first place, high-performance liquid chromatography is applied, in the form of size exclusion chromatography. It is also possible, however, to use other separation modes. More space is devoted to these other possibilities in this volume than is merited by their current range of applications, as the author believes that many separation problems will be solved by separation techniques of the non-exclusion type. Nevertheless, much emphasis is placed on size exclusion chromatography. Not only because of its current wide range of applications, but also because its relative importance, as a complement to other chromatographic techniques may even increase in the forthcoming years.
This book is the first to cover all phenomena related to the above considerations. Starting with an introduction to basic liquid chromatography and to polymer science, it deals with the adsorption behaviour of polymers, with gradient techniques, with the kinetic band broadening in liquid chromatography, with instrumental features and packing materials. The book consists of four balanced sections and related information from about 1800 references is compiled in the tables. Some 250 figures and 30 tables will help give the reader a clear insight of the topics discussed. The book is aimed at helping the
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- © Elsevier Science 1987
- 1st February 1987
- Elsevier Science
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