UID:
almahu_9949510859702882
Format:
1 online resource (702 pages)
ISBN:
0-323-99854-2
Content:
The Handbook of Natural Polymers: Sources, Synthesis, and Characterization is a comprehensive resource covering extraction and processing methods for polymers from natural sources, with an emphasis on the latest advances. The book begins by introducing the current state-of-the-art, challenges, and opportunities in natural polymers. This is followed by detailed coverage of extraction, synthesis, and characterization methods, organized by polymer type. Along with broad chapters discussing approaches to polysaccharide-based polymers, dedicated chapters offer in-depth information on nanocellulose, chitin and chitosan, gluten, alginate, natural rubber, gelatin, pectin, lignin, keratin, gutta percha, shellac, silk, wood, casein, albumin, collagen, hemicellulose, polyhydroxyalkanoates, zein, soya protein, and gum. The final chapters explore other key themes, including filler interactions and properties in natural polymer-based composites, biocompatibility and cytotoxicity, biodegradability, life cycle, and recycling. Throughout the book, information is supported by data, and guidance is offered regarding potential scale-up and industry factors. As part of a 3-volume handbook offering comprehensive coverage of natural polymers, this book will be of interest to all those looking to gain a broad knowledge of natural polymers, including academic researchers, scientists, advanced students, engineers, and R&D professionals from a range of disciplines and industries.
Note:
Front Cover -- HANDBOOK OF NATURAL POLYMERS -- HANDBOOK OF NATURAL POLYMERS -- Copyright -- Contents -- Contributors -- Preface -- 1 - The state of the art of biopolymers-new challenges, opportunities, and future prospects -- 1.1 Introduction -- 1.2 Classifications of natural polymers -- 1.2.1 Starch -- 1.2.2 Nanocellulose -- 1.2.3 Chitin and chitosan -- 1.2.4 Alginate -- 1.2.5 Natural rubber -- 1.2.6 Gluten -- 1.2.7 Pectin -- 1.2.8 Keratin, silk, wool -- 1.2.9 Shellac -- 1.2.10 Casein -- 1.2.11 Zein -- 1.2.12 Collagen -- 1.2.13 Hemicellulose -- 1.2.14 Lignin -- 1.2.15 Soya protein -- 1.2.16 Gum -- 1.2.17 Polyhydroxyalkanoates -- 1.3 Summary and future outlook -- References -- 2 - Extraction and classification of starch from different sources: Structure, properties, and characterization -- 2.1 Introduction -- 2.2 Sources of starch and its content -- 2.2.1 Seeds and fruits -- 2.2.1.1 Cereal grains -- 2.2.1.2 Fruits -- 2.2.1.3 Fruit seeds -- 2.2.2 Roots, tubers, and rhizomes -- 2.2.3 Stems and trunks -- 2.3 Extraction and isolation of starch -- 2.3.1 Disintegration -- 2.3.2 Separation and purification -- 2.3.3 General extraction and isolation methods of starch from roots, trunks, and grains -- 2.4 Structure of starch -- 2.4.1 Morphology of starch granules -- 2.4.2 Molecular structures -- 2.4.3 Crystallinity -- 2.5 Functional properties of starch and their methods of analyses -- 2.5.1 Swelling and solubilization -- 2.5.2 Gelatinization -- 2.5.3 Retrogradation -- 2.5.4 Rheology, pasting property, and gelation -- 2.6 Conclusions -- References -- 3 - Starch as a promising replacement for synthetic polymers -- 3.1 Introduction -- 3.2 Starch modifications and thermoplastic starch -- 3.2.1 Physical modification -- 3.2.2 Chemical modification -- 3.2.3 Enzymatic modification -- 3.2.4 Dual modification -- 3.3 Thermoplastic starch.
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3.4 Applications of starch as a bioplastic and to food -- 3.5 Starch biodegradability -- 3.6 Conclusion and future outlook -- References -- 4 - Recent studies on starch-based materials: Blends, composites, and nanocomposites -- 4.1 Introduction -- 4.2 Starch -- 4.3 Starch-based blends -- 4.3.1 Blends with biodegradable polyesters -- 4.3.2 Blends with agropolymers -- 4.4 Starch-based composites and nanocomposite -- 4.4.1 Clays and nanoclays fillers -- 4.4.2 Cellulose and derivatives filler -- 4.4.3 Metallic and metal oxide fillers -- 4.5 Processing -- 4.5.1 Casting -- 4.5.2 Extrusion -- 4.5.3 Injection molding -- 4.5.4 Compression molding -- 4.6 Conclusion -- References -- 5 - Recent perception into the extraction of nanocellulose: cross talk between natural resources and progressive ap ... -- Abbreviations -- 5.1 Introduction -- 5.2 Cellulosic biomass -- 5.2.1 Biomass components -- 5.2.2 Cellulose fiber and structure -- 5.3 Nanocellulose -- 5.3.1 Types of nanocellulose -- 5.4 Preparative techniques in nanocellulose production -- 5.4.1 High-pressure homogenization -- 5.4.2 High-intensity ultrasonication -- 5.4.3 Microfluidization -- 5.4.4 Cryocrushing -- 5.5 Extraction of nanocellulose -- 5.5.1 Pretreatment of biomass -- 5.5.1.1 Solvent extraction/eutectic solvents treatment -- 5.5.1.2 Bleaching process -- 5.5.1.3 Prealkalization and alkaline treatment -- 5.5.1.4 Enzymatic pretreatment -- 5.5.1.5 Ionic liquids treatment -- 5.5.1.6 Oxidation method -- 5.5.1.7 Steam explosion method -- 5.5.1.8 Mechanical treatment -- 5.5.2 Isolation of nanocellulose -- 5.6 Characterization of nanocellulose -- 5.6.1 Fourier transform infrared spectroscopy -- 5.6.2 X-ray diffraction -- 5.6.3 Transmission electron microscopy -- 5.7 Applications of nanocellulose -- 5.7.1 Application in the biomedical field -- 5.7.1.1 Drug delivery systems.
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5.7.1.2 Role of nanocellulose in tissue engineering -- 5.7.1.3 Wound repair -- 5.7.1.4 Biosensing -- 5.7.2 Impact of nanocellulose on environmental remedy -- 5.7.3 Application in the packaging sector -- 5.7.4 Engineering and electronic applications -- 5.7.5 Biodegradability of polymers based on nanocellulose -- 5.8 Concluding remarks and future outlook -- References -- 6 - Extraction of chitin, preparation of chitosan and their structural characterization -- 6.1 Introduction -- 6.2 Structural characterization of chitin and chitosan -- 6.2.1 Determination of degree of acetylation -- 6.2.1.1 Potentiometric titration -- 6.2.1.2 Conductimetric titration -- 6.2.1.3 Spectroscopic techniques -- 6.2.1.3.1 Solid-state NMR spectroscopy -- 6.2.1.3.2 Liquid 1H NMR spectroscopy -- 6.2.1.3.3 Infrared spectroscopy -- 6.2.1.3.4 UV-visible spectroscopy [42] -- 6.2.1.3.5 X-ray diffraction -- 6.2.1.3.6 Deacetylation pattern -- 6.3 Solution properties of chitosan, determination of molar mass -- 6.4 Extraction of chitin -- 6.5 Deacetylation of chitin: preparation of chitosan -- 6.6 Role of process and structure of original chitin -- 6.7 Role of the source -- 6.8 Preparation of chitins and chitosans with controlled physicochemical properties -- 6.9 Conclusion -- References -- 7 - Chitin and chitosan-based polymer blends, interpenetrating polymer networks, and gels -- 7.1 Introduction -- 7.2 Modification of chitosan -- 7.2.1 Chemical modification of chitosan through chitosan derivatives -- 7.2.1.1 Carboxylation -- 7.2.1.2 Etherification -- 7.2.1.3 Esterification -- 7.2.2 Physical modification of chitosan through blending with other biopolymers -- 7.2.2.1 Chitosan blending with natural polymers -- 7.2.2.1.1 Chitosan-polysaccharide blended materials -- 7.2.2.1.2 Chitosan-protein blended materials -- 7.2.2.2 Chitosan blending with synthetic polymers.
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7.3 Applications of chitosan-based polymer blends -- 7.4 Conclusions and future perspectives -- References -- 8 - Antibacterial efficacy of natural compounds chitin and chitosan: a mechanistic disclosure -- 8.1 Introduction -- 8.2 Historical perspective -- 8.3 Chitin -- 8.3.1 Chitin sources -- 8.3.2 Chemical structure of chitin -- 8.4 Chitosan -- 8.4.1 Sources of chitosan -- 8.4.2 Chitosan structure -- 8.4.3 Chitin's and chitosan's biological characteristics -- 8.5 Antibacterial effect of chitin -- 8.6 Mechanism of action of chitosan against pathogenic microbes -- 8.6.1 Cell wall disruption -- 8.6.2 Chitosan-microbial DNA interactions -- 8.6.3 Chitosan chelation of nutrients -- 8.6.4 Bacteriostatic efficacy of chitosan -- 8.6.4.1 Efficacy of chitosan with Gram-positive bacteria -- 8.6.4.2 Interaction of chitosan with Gram-negative bacteria -- 8.6.4.3 Chitosan's role in wound healing -- 8.7 Factors affecting the antibacterial activity of chitosan -- 8.7.1 Chitosan molecular weight -- 8.7.2 The pH effects -- 8.7.3 Chitosan concentration -- 8.7.4 Chitosan-derived compounds -- 8.7.5 Cell growth phase -- 8.7.6 Temperature -- 8.7.7 Hydrophilic and hydrophobic properties -- 8.7.8 Microorganisms -- 8.7.8.1 Classification of bacteria -- 8.8 Applications of chitosan -- 8.8.1 Food processing applications -- 8.8.1.1 Preservation of food packaging -- 8.8.1.2 Role of chitosan in food additives -- 8.8.2 Medicine and health -- 8.8.2.1 Drug transporters -- 8.8.2.2 Wound dressings -- 8.8.2.3 Tissue engineering -- 8.9 Conclusions and future perspectives -- References -- 9 - Anisotropic nanoscale green materials: prior and current status of nanocellulose and nanochitin systems -- 9.1 Introduction -- 9.2 Cellulose and nanocellulose -- 9.2.1 Cellulose origin and chemistry -- 9.2.2 Nanocellulose classifications -- 9.3 Chitin and nanochitin.
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9.3.1 Chitin origin and chemistry -- 9.3.2 Chitin allomorphs -- 9.4 Utility of biobased nanomaterials -- 9.4.1 Nanocellulose in aqueous suspension -- 9.4.1.1 Flow behavior of fibrous nanocellulose -- 9.4.1.2 Flow behavior of crystalline nanocellulose -- 9.4.1.3 Lyotropic behavior of crystalline nanocellulose -- 9.4.1.4 Solid-state behavior of nanocellulose -- 9.4.1.4.1 Fibrous nanocellulose films and nanocomposites -- 9.4.1.4.2 Crystalline nanocellulose films and nanocomposites -- 9.4.2 Nanochitin in aqueous suspension -- 9.4.2.1 Phase and flow behavior of nanochitin suspensions -- 9.4.2.2 Rheological behavior of nanochitin in polymer dispersions -- 9.4.2.3 Solid-state behavior of nanochitin -- 9.4.2.3.1 Nanochitin-based materials and properties -- 9.4.2.3.2 Nanochitin-based polymer nanocomposites -- 9.5 Conclusions and future prospects -- References -- 10 - Grafted natural polymers: synthesis and structure-property relationships -- 10.1 Introduction -- 10.2 Natural polymers/polysaccharides -- 10.3 Structure-property relationship of grafted natural polymer -- 10.3.1 Xanthan gum -- 10.3.2 Alginate -- 10.3.3 Cellulose -- 10.3.4 Starch -- 10.3.5 Dextran -- 10.3.6 Carrageenans -- 10.3.7 Chitin and chitosan -- 10.4 Goals of grafting of natural polymer -- 10.4.1 Solubility -- 10.4.2 Hydrophobicity -- 10.4.3 Charge density modification -- 10.5 Concept of grafting -- 10.6 Types of grafting -- 10.7 Techniques of synthesis of grafted natural polymers -- 10.7.1 Methods of radiation-induced grafting -- 10.8 Controlling factors of grafting -- 10.8.1 Type of polymer -- 10.8.2 Effect of initiator -- 10.8.3 Effect of monomer -- 10.8.4 Type of radiation (dose, dose rate) -- 10.8.5 Effects of solvent -- 10.8.6 Effect of temperature -- 10.9 Reported grafted natural polysaccharides -- 10.10 Characterization of the grafted natural polymeric materials.
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10.10.1 Fourier transform infrared spectroscopy.
Additional Edition:
Print version: Sreekala, M. S. Handbook of Natural Polymers, Volume 1 San Diego : Elsevier,c2023 ISBN 9780323998536
Language:
English
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