Cellulose and Cellulose Derivatives


Author: Kenji Kamide
Publisher: Elsevier
ISBN: 9780080454443
Category: Technology & Engineering
Page: 652
View: 8110

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Many highly acclaimed and authoritative books on polymer science tend to focus on synthetic polymers. Cellulose and Cellulose Derivatives is the first authoritative book on the subject. It examines recent developments, with particular reference to cellulose (in aqueous alkali) and cellulose acetate. Packed with examples, the author takes an in-depth look at the topic, using the most reliable experimental data available. A comprehensive approach to the fundamental principles of cellulose and its derivatives in solution makes Cellulose and Cellulose Derivatives ideal reading for novices as well as experienced cellulose scientists. * Outlines the theoretical fundamentals of cellulose and cellulose derivatives * Presents comprehensive and reliable experimental results in figures and tables * Highly illustrated and easy to read

Cellulose and Cellulose Derivatives in the Food Industry

Fundamentals and Applications
Author: Tanja Wüstenberg
Publisher: John Wiley & Sons
ISBN: 352733758X
Category: SCIENCE
Page: 552
View: 7424

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Authored by an expert with many years of experience as an application engineer at renowned cellulose processing companies in the food industry, this book presents all the conventional and latest knowledge available on cellulose and its derivatives. Throughout, the necessary details are elucidated from a theoretical and practical viewpoint, while retaining the focus on food applications. The book provides an essential source of informations including recommendations and instructions of a general nature to assist readers in the exploration of possible applications of cellulose and its derivatives and the generation of new ideas for product development. Topics include gelling and rheological properties, synergistic effects with other hydrocolloids, as well as nutritional and legal aspects. The resulting compilation covers all the information and advice needed for the successful development, implementation, and handling of cellulose-containing products.

Cellulose Derivatives

Synthesis, Structure, and Properties
Author: Thomas Heinze,Omar A. El Seoud,Andreas Koschella
Publisher: Springer
ISBN: 3319731688
Category: Technology & Engineering
Page: 531
View: 8306

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This book summarizes recent progress in cellulose chemistry. The last 10 years have witnessed important developments, because sustainability is a major concern. Biodegradable cellulose derivatives, in particular esters and ethers, are employed on a large scale. The recent developments in cellulose chemistry include unconventional methods for the synthesis of derivatives, introduction of novel solvents, e.g. ionic liquids, novel approaches to regioselective derivatization of cellulose, preparation of nano-particles and nano-composites for specific applications. These new developments are discussed comprehensively. This book is aimed at researchers and professionals working on cellulose and its derivatives. It fills an important gap in teaching, because most organic chemistry textbooks concentrate on the relatively simple chemistry of mono- and disaccharides. The chemistry and, more importantly, the applications of cellulose are only concisely mentioned.

Cellulose and cellulose derivatives


Author: Emil Ott,Harold M. Spurlin,Mildred W. Grafflin,Norbert M Bikales,Leon Segal
Publisher: N.A
ISBN: N.A
Category: Cellulose
Page: N.A
View: 7131

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Cellulose and Cellulose Derivatives

Synthesis, Modification and Applications
Author: Md. Ibrahim H. Mondal
Publisher: N.A
ISBN: 9781634831277
Category:
Page: 565
View: 1688

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Cellulose is the principal constituent of all plant life; it is the most abundant, important and fascinating biopolymer on earth. Cellulose, as an almost inexhaustible, environmentally benign and renewable material, has stimulated basic and applied research as well as inspired significant progress in Polymer Science. In recent years, cellulose has gained renewed importance as a raw material. Although ground breaking research is carried out on cellulose, it still possesses high potential for future applications; it can be easily modified to more natural and sustainable alternatives compared to synthetic products by certain techniques. The present book reviews some vital issues and topics on the latest science and technological advances in cellulose and its derivatives. This catalog acts as an essential source of information to readers in the exploration for possible applications of cellulose and its derivatives. The authors hope this collection will spark a generation of new ideas for product development. The present book contains 25 invited contributions written by leading experts in the field of cellulose and cellulose derivatives. It is divided into three parts: Part I, Cellulose Synthesis and Modification; Part II, Cellulose Derivatives; and Part III, Applications of Cellulose Derivatives. Highlights of this book include the mechanism of cellulose formation in biosynthetical processes; surface modification and functionalization of cellulose fibers; advances in the homogenous and heterogeneous phase modification of cellulose to create unusual and functional derivatives; analysis and characterization of modified derivatives; derivatives for antimicrobial, medical and pharmaceutical applications, and wastewater treatment; dendronized and hyperbranched cellulose derivatives; and rheology of nanocellulosic systems.

Cellulose Chemistry and Properties: Fibers, Nanocelluloses and Advanced Materials


Author: Orlando J. Rojas
Publisher: Springer
ISBN: 3319260154
Category: Technology & Engineering
Page: 333
View: 2916

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Vincent Bulone et al.: Cellulose sources and new understanding of synthesis in plants Thomas Heinze et al.:Cellulose structure and properties Thomas Rosenau, Antje Potthast, Ute Henniges et al.: Recent developments in cellulose aging (degradation / yellowing / chromophore formation) Sunkyu Park et al.:Cellulose crystallinity Lina Zhang et al.:Gelation and dissolution behavior of cellulose Yoshiyuki Nishio et al.:Cellulose and derivatives in liquid crystals Alessandro Gandini, Naceur Belgacem et al.:The surface and in-depth modification of cellulose fibers Emily D. Cranston et al.:Interfacial properties of cellulose Herbert Sixta, Michael Hummel et al.Cellulose Fibers Regenerated from Cellulose Solutions in Ionic Liquids Qi Zhou et al.:Cellulose-based biocomposites Orlando Rojas et al.:Films of cellulose nanocrystals and nanofibrils Pedro Fardim et al.:Functional cellulose particles Wadood Hamad et al.:Cellulose Composites

Cellulose Science and Technology


Author: Jean-Luc Wertz,Olivier Bédué,Jean P. Mercier
Publisher: EPFL Press
ISBN: 9781420066883
Category: Science
Page: 364
View: 3969

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An ideal reference for scientists in natural and synthetic polymer research, this book applies basic biology as well as polymer and sugar chemistry to the study of cellulose, and it provides key requirements for understanding this complex science.

Cellulose and Cellulose Derivatives

Cellucon ’93 Proceedings: Physico-Chemical Aspects and Industrial Applications
Author: J F Kennedy,Glyn O. Phillips,P A Williams,J L Piculell
Publisher: Elsevier
ISBN: 1845698533
Category: Technology & Engineering
Page: 608
View: 6431

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The proceedings of the Cellucon Trust conference held in Lund, Sweden, in 1993. The latest scientific advances are covered, environmental concerns and the consequent economic costs are dealt with. The papers have surprisingly wide applications across a number of industries, including food processing, pharmaceuticals, chemical processing, civil engineering and composite materials production.

Crystalline Cellulose and Derivatives

Characterization and Structures
Author: Peter Zugenmaier
Publisher: Springer
ISBN: 9783540739333
Category: Technology & Engineering
Page: 285
View: 4871

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Cellulose as an abundant renewable material has stimulated basic and applied research that has resulted in significant progress in polymer science. This book discusses reliable crystal structures of all cellulose polymorphs and cellulose derivatives. Models are represented in graphs, together with a collection of geometrical data and the atomic coordinates. This book is a concise guide for members of the materials and life sciences communities interested in cellulose and related materials.

Nanocellulose Polymer Nanocomposites

Fundamentals and Applications
Author: Vijay Kumar Thakur
Publisher: John Wiley & Sons
ISBN: 1118872347
Category: Technology & Engineering
Page: 536
View: 1180

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Biorenewable polymers based nanomaterials are rapidly emerging as one of the most fascinating materials for multifunctional applications. Among biorenewable polymers, cellulose based nanomaterials are of great importance due to their inherent advantages such as environmental friendliness, biodegradability, biocompatibility, easy processing and cost effectiveness, to name a few. They may be produced from biological systems such as plants or be chemically synthesised from biological materials. This book summarizes the recent remarkable achievements witnessed in green technology of cellulose based nanomaterials in different fields ranging from biomedical to automotive. This book also discusses the extensive research developments for next generation nanocellulose-based polymer nanocomposites. The book contains seventeen chapters and each chapter addresses some specific issues related to nanocellulose and also demonstrates the real potentialities of these nanomaterials in different domains. The key features of the book are: Synthesis and chemistry of nanocellulose from different biorenewable resources Different characterization of nanocellulosic materials and their respective polymer nanocomposites Physico-chemical, thermal and mechanical investigation of nanocellulose based polymer nanocomposites Provides elementary information and rich understanding of the present state-of- art of nanocellulose-based materials Explores the full range of applications of different nanocellulose-based materials.

Monomers, Polymers and Composites from Renewable Resources


Author: Mohamed Naceur Belgacem,Alessandro Gandini
Publisher: Elsevier
ISBN: 9780080560519
Category: Technology & Engineering
Page: 560
View: 7097

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The progressive dwindling of fossil resources, coupled with the drastic increase in oil prices, have sparked a feverish activity in search of alternatives based on renewable resources for the production of energy. Given the predominance of petroleum- and carbon-based chemistry for the manufacture of organic chemical commodities, a similar preoccupation has recently generated numerous initiatives aimed at replacing these fossil sources with renewable counterparts. In particular, major efforts are being conducted in the field of polymer science and technology to prepare macromolecular materials based on renewable resources. The concept of the bio-refinery, viz. the rational exploitation of the vegetable biomass in terms of the separation of its components and their utilisation as such, or after suitable chemical modifications, is thus gaining momentum and considerable financial backing from both the public and private sectors. This collection of chapters, each one written by internationally recognised experts in the corresponding field, covers in a comprehensive fashion all the major aspects related to the synthesis, characterization and properties of macromolecular materials prepared using renewable resources as such, or after appropriate modifications. Thus, monomers such as terpenes and furans, oligomers like rosin and tannins, and polymers ranging from cellulose to proteins and including macromolecules synthesized by microbes, are discussed with the purpose of showing the extraordinary variety of materials that can be prepared from their intelligent exploitation. Particular emphasis has been placed on recent advances and imminent perspectives, given the incessantly growing interest that this area is experiencing in both the scientific and technological realms. Discusses bio-refining with explicit application to materials Replete with examples of applications of the concept of sustainable development Presents an impressive variety of novel macromolecular materials

Cellulose-Based Graft Copolymers

Structure and Chemistry
Author: Vijay Kumar Thakur
Publisher: CRC Press
ISBN: 1482242486
Category: Medical
Page: 628
View: 1021

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Cellulose-Based Graft Copolymers: Structure and Chemistry discusses the synthesis, characterization, and properties of multifunctional cellulose-based graft copolymers. Presenting the contributions of accomplished experts in the field of natural cellulosic polymers, this authoritative text: Offers an overview of cutting-edge technical accomplishments in natural cellulose-based graft polymers Addresses a separate biomaterial in each chapter, exploring composition as well as graft copolymerization chemistry Covers fundamentals and applications including toxic ion removal, biomedical engineering, biofuels, micro/nano composites, papermaking, building materials, and defense Cellulose-Based Graft Copolymers: Structure and Chemistry tackles several critical issues and provides suggestions for future work, supplying deeper insight into the state of the art of advanced cellulose-based graft copolymers.

Green Materials for Electronics


Author: Mihai Irimia-Vladu,Eric D. Glowacki,Niyazi S. Sariciftci,Siegfried Bauer
Publisher: John Wiley & Sons
ISBN: 3527692967
Category: Technology & Engineering
Page: 206
View: 8257

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Combining the materials science, technological, and device aspects of organic bioelectronics based on green materials, this is the first overview of the emerging concepts involving fabrication techniques for sustainable electronics with low energy and material consumption. With contributions from top-notch editors and authors, in one focus, the book covers a collection of natural materials suited for electronics applications such as paper, silk, melanin, DNA and nucleobases, resins, gums, saccharides, cellulose, gelatine and peptides. In another thrust, the book focuses on device fabrication based on these materials, including processing aspects, and applications such as sensors, signal transducers, transient, implantable and digestible electronics. With its interdisciplinary approach this text will appeal to the chemistry, physics, materials science, and engineering communities.

Evaluation of Cellulose Ethers for Conservation


Author: Robert L. Feller,Myron H. Wilt
Publisher: Getty Publications
ISBN: 0892360992
Category: Art
Page: 164
View: 9222

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This report is the result of a three-year research program. It describes the chemical character of cellulose ethers as a general class of polymers and establishes an approximate ranking of the relative stability of each generic chemical subclass. Ranking the thermal stability of the polymers with respect to color change and loss in degree of polymerization led to the conclusion that as generic chemical classes, methylcellulose and carboxymethylcellulose appear to be the most stable of the cellulose ethers. Water-soluble ethylhydroxyethylcellulose apparently also possesses good stability. Of questionable long-term stability are hydroxyethylcellulose and hydroxy- propylcellulose. Ethylcellulose and organic-soluble ethylhydroxyethylcellulose proved to be of poor stability, potentially undergoing marked changes in twenty years or less under normal museum conditions. An important additional conclusion reached here, as well as in an earlier investigation, is that considerable variations in stability can occur within a generic chemical class from differences in the basic raw material, a natural product from plants, which is not a uniform, manufactured, chemical substance. Further variations can exist due to different manufacturing processes or commercial sources. Hence, commercial products must be evaluated individually to determine the most stable of a given generic type. Nonetheless, the authors believe the conclusions expressed here to be valid with regard to the relative stability of the generic chemical classes of cellulose ethers.

Cellulose

Structure and Properties, Derivatives and Industrial Uses
Author: Arnaud Lejeune,Thibaut Deprez
Publisher: Nova Biomedical Books
ISBN: 9781608763887
Category: Science
Page: 528
View: 5687

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Cellulose is the most widely spread organic polymer found in nature, since it constitutes the main component of the membrane of plant cell. It is well-known that cellulose is a very important and fascinating biopolymer and an almost inexhaustible and renewable raw material. This book provides a synthesis of the old knowledge and the development of different studies which contribute to the understanding of the structure of cellulose allomorphs. In addition, cellulosic ethanol has been taken as a promising alternative energy source for the non-renewable fossil fuel. This book reviews the development of biochemical conversion of biomass materials into cellulosic ethanol, including previous achievements, current status, and future work. The various aspects of natural and accelerated ageing of cellulose are also presented and discussed. Other chapters in this book explore the basic principles of cellulose oxidation chemistry with a focus on different products of the reactions. The main part of the chapter focuses on both known and newly proposed applications of oxidised celluloses in medical, cosmetic, hygiene and food industry. A critical analysis is also made of the literature concerned with the kinetics of cellulose degradation. Furthermore, this book reviews bacterial cellulose (BC), an outstanding biomaterial with unique properties, including high water holding capacity, high crystallinity and ultrafine fibre network. These properties support a wide range of applications, in human and veterinary medicine, odonthology, pharmaceutical industry, acoustic and filter membranes, biotechnological devices and in the food and paper industry.

Cellulose


Author: Krassig
Publisher: CRC Press
ISBN: 9782881247989
Category: Science
Page: 240
View: 2536

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Evaluation of Cellulose Ethers for Conservation


Author: Robert L. Feller,Myron H. Wilt
Publisher: Getty Publications
ISBN: 0892360992
Category: Art
Page: 164
View: 8766

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This report is the result of a three-year research program. It describes the chemical character of cellulose ethers as a general class of polymers and establishes an approximate ranking of the relative stability of each generic chemical subclass. Ranking the thermal stability of the polymers with respect to color change and loss in degree of polymerization led to the conclusion that as generic chemical classes, methylcellulose and carboxymethylcellulose appear to be the most stable of the cellulose ethers. Water-soluble ethylhydroxyethylcellulose apparently also possesses good stability. Of questionable long-term stability are hydroxyethylcellulose and hydroxy- propylcellulose. Ethylcellulose and organic-soluble ethylhydroxyethylcellulose proved to be of poor stability, potentially undergoing marked changes in twenty years or less under normal museum conditions. An important additional conclusion reached here, as well as in an earlier investigation, is that considerable variations in stability can occur within a generic chemical class from differences in the basic raw material, a natural product from plants, which is not a uniform, manufactured, chemical substance. Further variations can exist due to different manufacturing processes or commercial sources. Hence, commercial products must be evaluated individually to determine the most stable of a given generic type. Nonetheless, the authors believe the conclusions expressed here to be valid with regard to the relative stability of the generic chemical classes of cellulose ethers.

Absorbent Technology


Author: P.K. Chatterjee,B.S. Gupta
Publisher: Elsevier
ISBN: 9780080525853
Category: Science
Page: 500
View: 3236

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This publication discusses the theoretical aspects of absorbency as well as the structure, properties and performance of materials. The chapters are arranged in an approach for the reader to advance progressively through fundamental theories of absorbency to more practical aspects of the technology. Topics covered include scientific principles of absorbency and structure property relationships; material technology including super absorbents, non-woven, natural and synthetic fibres and surfactants; absorbency measurement techniques and technology perspective. The reader is provided with current status information on technology and is also informed on important developments within the field.

Chemical Modification of Lignocellulosic Materials


Author: DavidN.-S. Hon
Publisher: Routledge
ISBN: 1351461478
Category: Technology & Engineering
Page: 384
View: 1502

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This volume emphasizes the growing need for wood products with advanced engineering properties. It details the fundamental principles of cellulose technology and presents current techniques to modifying the basic chemistry of lignocellulosic materials. The work: discusses the cost-efficient use of cellulose derivatives in a variety of commodities; highlights the chemical modification of wood by methods such as etherification, esterification and thermoplasticization; considers recent progress in the lignocellulosic liquefaction of wood; and more.