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Atmospheric Acetic Acid Pulping of Rice Straw IV: Physico-Chemical Characterization of Acetic Acid Lignins from Rice Straw and Woods. Part 2. Chemical Structures
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Xue-Jun Pan
Published/Copyright:
June 1, 2005
Summary
Acetic acid lignins from rice straw (RLs), birch (BL) and fir (FL) were chemically characterized by means of elementary analysis, functional groups analysis, alkaline nitrobenzene and permanganate oxidation, Mannich reactivity and other techniques. The results showed that RLs had higher contents of residual polysaccharide and protein, and remarkably fewer acetyl groups than BL and FL. Results of nitrobenzene and permanganate oxidation indicated that RLs were remarkably more condensed than the native lignin in rice straw. In addition, the results of Mannich reactivity showed that RLs were more reactive toward modification than BL and FL, and might be a good raw material for lignin derivatives, such as lignin adhesives and chelating resins.
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Published Online: 2005-06-01
Published in Print: 1999-11-11
Copyright © 1999 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- Subject Index
- Author Index
- Species Index
- Contents
- Production of Polygalacturonase and Increase of Longitudinal Gas Permeability in Southern Pine by Brown-Rot and White-Rot Fungi
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- Rapid Determination of the Lignin Content in Sitka Spruce (Picea sitchensis (Bong.) Carr.) Wood by Fourier Transform Infrared Spectrometry
- Lignin Analysis by Permanganate Oxidation. II. Lignins in Acidic Organosolv Pulps
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- Reduction of Weathering Degradation of Wood Through Plasma-Polymer Coating
- VOC Extraction from Softwood Through Low-Headspace Heating
- Localization of Wood Improvement Compounds by Microautoradiography and ESEM
- Laser Ablation of Machined Wood Surfaces. 2. Effect on End-Grain Gluing of Pine (Pinus silvestris L.)
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Articles in the same Issue
- Subject Index
- Author Index
- Species Index
- Contents
- Production of Polygalacturonase and Increase of Longitudinal Gas Permeability in Southern Pine by Brown-Rot and White-Rot Fungi
- Components of Steamed and Non-Steamed Japanese Larch (Larix leptolepis (Sieb. et Zucc.) Gord.) Heartwood Affecting the Feeding Behavior of the Subterranean Termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae)
- Effect of Soluble Nutrient Content in Wood on its Susceptibility to Soft Rot and Bacterial Attack in Ground Test
- Carboxylic Acids of Moroccan Pinus Pinaster Bark Extract
- What Factors Control Dimerization of Coniferyl Alcohol?
- Atmospheric Acetic Acid Pulping of Rice Straw IV: Physico-Chemical Characterization of Acetic Acid Lignins from Rice Straw and Woods. Part 2. Chemical Structures
- Rapid Determination of the Lignin Content in Sitka Spruce (Picea sitchensis (Bong.) Carr.) Wood by Fourier Transform Infrared Spectrometry
- Lignin Analysis by Permanganate Oxidation. II. Lignins in Acidic Organosolv Pulps
- Lignin Depolymerization in Hydrogen-Donor Solvents
- Species Effects on Wood-Liquefaction in Polyhydric Alcohols
- NMR Analysis of Oxidative Alkaline Extraction Stage Lignins
- Reduction of Weathering Degradation of Wood Through Plasma-Polymer Coating
- VOC Extraction from Softwood Through Low-Headspace Heating
- Localization of Wood Improvement Compounds by Microautoradiography and ESEM
- Laser Ablation of Machined Wood Surfaces. 2. Effect on End-Grain Gluing of Pine (Pinus silvestris L.)
- Multi-Component Mixture Modeling for the Dielectric Properties of Rubber Wood at Microwave Frequencies
- Adsorption of Liquids and Swelling of Wood IV. Temperature Dependence on the Adsorption
- Prevention of Extractive Leaching by Chemical Treatments of Wood Surface
