Methods in lignin chemistry

Methods in lignin chemistry

by Dence, Carlton W. Lin, Stephen Y.

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The structural complexity of lignin has continually challenged the inƯ genuity of researchers to develop suitable methods for its characƯ terization prior to and following a wide variety of chemical, biologiƯ cal, and physical treatments. Initially, activity along these lines was fueled by a desire to interpret technical delignification (Le., pulping) processes in terms of accompanying structural changes in the lignin. Subsequently, increasingly wide ranging, in-depth investigations on the stru…

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Title Statements

  • Full title :Methods in lignin chemistry / Stephen Y. Lin, Carlton W. Dence (eds.).

Summary

The structural complexity of lignin has continually challenged the inƯ genuity of researchers to develop suitable methods for its characƯ terization prior to and following a wide variety of chemical, biologiƯ cal, and physical treatments. Initially, activity along these lines was fueled by a desire to interpret technical delignification (Le., pulping) processes in terms of accompanying structural changes in the lignin. Subsequently, increasingly wide ranging, in-depth investigations on the structure and reactivity of lignin exposed the inadequacy of many of the methods currently in use and underscored the ever-continuing need to develop new methods capable of solving the unique analytical problems associated with lignin. Characteristically, such methods should be selective, sensitive, suitable for quantitative measurements, and capable of being applied directly to, and without destruction of, the lignin or lignocellulose sample. One notable example of the headƯ way being made in reaching this objective is the relatively recent develƯ opment and refinement of methods based on the use of sophisticated instrumentation, e. g., lH_ and 13C-NMR spectroscopy. Although the utility of many of these and other recently developed methods deƯ scribed in this book has yet to be fully and satisfactorily exploited, we believe that progress already made in this direction will continue and most likely accelerate. The decision to produce this book was prompted mainly by the acknowledged need for an up-to-date, single source compilation of lignin methodology. Hitherto, this need was, in part, satisfied by B.L.

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Edition Statements

  • Publication Date:©1992.

Publication Statements

  • Publisher(s):Springer-Verlag
  • Place of Publication:Berlin
  • Language:eng
  • Publication Date:©1992.

The Physical Object

  • Description:1 online resource

Edition Identifiers

  • ISBN:3540502955, 9783540502951, 0387502955, 9780387502953
  • oclc:on1012466847
  • LC Classification:TS933.L5
  • Dewey Decimal:661/.802

Table of Contents

1 Introduction -- 1 Introduction -- 2 Detection and Determination -- 2.1 The Detection of Lignin -- 2.2 The Determination of Lignin -- 3 Isolation and Purification -- 3.1 Wood -- 3.2 Isolation of Lignin from Pulp -- 3.3 Commercial Spent Pulping Liquors -- 4 Characterization in Solid State -- 4.1 Fourier Transform Infrared Spectroscopy -- 4.2 Ultraviolet Microscopy -- 4.3 Interference Microscopy -- 4.4 Electron Microscopy -- 4.5 Cross Polarization/Magic Angle Spinning Nuclear Magnetic Resonance (CP/MAS NMR) Spectroscopy -- 4.6 Raman Spectroscopy -- 4.7 Pyrolysis-Gas Chromatography-Mass Spectrometry -- 4.8 Thermal Analysis -- 5 Characterization in Solution: Spectroscopic Methods -- 5.1 Ultraviolet Spectrophotometry -- 5.2 Fourier Transform Infrared Spectroscopy -- 5.3 Proton (1H) NMR Spectroscopy -- 5.4 Carbon-13 Nuclear Magnetic Resonance Spectrometry -- 5.5 Electron Spin Resonance (ESR) Spectroscopy -- 6 Characterization in Solution: Chemical Degradation Methods -- 6.1 Acidolysis -- 6.2 Nitrobenzene and Cupric Oxide Oxidations -- 6.3 Chemical Degradation Methods: Permanganate Oxidation -- 6.4 Thioacidolysis -- 6.5 Hydrogenolysis -- 6.6 Nucleus Exchange Reaction -- 6.7 Ozonation --…

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Subjects

Lignin Lignine

Writers

Dence, Carlton W. Lin, Stephen Y.

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