Title Esterification of polysaccharides / Thomas Heinze, Tim Liebert, Andreas Koschella

Published Berlin ; New York : Springer, ©2006

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Description 1 online resource (xv, 232 pages) : illustrations Series Springer laboratory Springer laboratory Contents Cover -- Table of Contents -- 1 INTRODUCTION AND OBJECTIVES -- 2 STRUCTURE OF POLYSACCHARIDES -- 2.1 Structural Features -- 2.1.1 Cellulose -- 2.1.2 -(13)-Glucans -- 2.1.3 Dextran -- 2.1.4 Pullulan -- 2.1.5 Starch -- 2.1.6 Hemicelluloses -- 2.1.7 Guar -- 2.1.8 Inulin -- 2.1.9 Chitin and Chitosan -- 2.1.10 Alginates -- 3 ANALYSIS OF POLYSACCHARIDE STRUCTURES -- 3.1 Optical Spectroscopy -- 3.2 NMR Spectroscopy -- 3.2.1 [sup(13)]CNMR Spectroscopy -- 3.2.2 [sup(1)]HNMR Spectroscopy -- 3.2.3 Two-dimensional NMR Techniques -- 3.2.4 Chromatography and Mass Spectrometry -- 4 ESTERS OF CARBOXYLIC ACIDS -- CONVENTIONAL METHODS -- 4.1 Acylation with Carboxylic Acid Chlorides and Anhydrides -- 4.1.1 Heterogeneous Acylation -- Industrial Processes -- 4.1.2 Heterogeneous Conversion in the Presence of a Base -- 5 NEWPATHS FOR THE INTRODUCTION OF ORGANIC ESTER MOIETIES -- 5.1 Media for Homogeneous Reactions -- 5.1.1 Aqueous Media -- 5.1.2 Non-aqueous Solvents -- 5.1.3 Multicomponent Solvents -- 5.1.4 Soluble Polysaccharide Intermediates -- 5.2 In Situ Activation of Carboxylic Acids -- 5.2.1 Sulphonic Acid Chlorides -- 5.2.2 Dialkylcarbodiimide -- 5.2.3 N, N' -Carbonyldiimidazole -- 5.2.4 Iminium Chlorides -- 5.3 Miscellaneous New Ways for Polysaccharide Esterification -- 5.3.1 Transesterification -- 5.3.2 Esterification by Ring Opening Reactions -- 6 SULPHONIC ACID ESTERS -- 6.1 Mesylates -- 6.2 Tosylates -- 6.3 Miscellaneous Sulphonic Acid Esters -- 7 INORGANIC POLYSACCHARIDE ESTERS -- 7.1 Sulphuric Acid Half Esters -- 7.2 Phosphates -- 7.3 Nitrates -- 8 STRUCTURE ANALYSIS OF POLYSACCHARIDE ESTERS -- 8.1 Chemical Characterisation -- Standard Methods -- 8.2 Optical Spectroscopy -- 8.3 NMR Measurements -- 8.4 Subsequent Functionalisation -- 8.4.1 NMR Spectroscopy on Completely Functionalised Derivatives -- 8.4.2 Chromatographic Techniques -- 9 POLYSACCHARIDE ESTERS WITH DEFINED FUNCTIONALISATION PATTERN -- 9.1 Selective Deacylation -- 9.2 Protective Group Technique -- 9.2.1 Tritylation -- 9.2.2 Bulky Organosilyl Groups -- 9.3 Medium Controlled Selectivity -- 10 SELECTED EXAMPLES OF NEW APPLICATIONS -- 10.1 Materials for Selective Separation -- 10.1.1 Stationary Phases for Chromatography -- 10.1.2 Selective Membranes -- 10.2 Biological Activity -- 10.3 Carrier Materials -- 10.3.1 Prodrugs on the Basis of Polysaccharides -- 10.3.2 Nanoparticles and Hydrogels -- 10.3.3 Plasma Substitute -- 11 OUTLOOK -- 12 EXPERIMENTAL PROTOCOLS -- REFERENCES -- SUBJECT INDEX -- Last Page Summary The way of producing Polysaccharide esters have not been changed significantly during their history of manufacture. Focusing on the investigation of acylation methods and strategies of analysis, this book provides a comprehensive summary of acylation methods. It includes a CD-ROM, which features various FTIR-, 1H NMR- and 13C NMR spectra Analysis chemie chemistry biochemie biochemistry biotechnologie biotechnology polymeren polymers analytische scheikunde analytical chemistry organische scheikunde organic chemistry Chemistry (General) Chemie (algemeen) Bibliography Includes bibliographical references (pages 217-228) and index Notes Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 MiAaHDL Print version record digitized 2011 HathiTrust Digital Library committed to preserve pda MiAaHDL In Springer e-books Subject Polysaccharides. Acylation. Esterification. Polysaccharides Acylation Esterification SCIENCE -- Life Sciences -- Biochemistry. Chimie. Science des matériaux. Acylation Esterification Polysaccharides Polysacchariden. Esters. Zetmeel. Cellulose. Chemische structuur. Spectrometrie. Acylering. Oplosmiddelen. Sulfonzuren. Polissacarídeos. EsterificaÇÃo. Form Electronic book Author Liebert, Tim Koschella, Andreas ISBN 9783540321125 3540321128 1280615176 9781280615177 9786610615179 6610615179

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