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Author: Hans-Henning Kausch
Publisher: Springer Science & Business Media
ISBN: 9783540261551
Category : Technology & Engineering
Languages : en
Pages : 420
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Book Description
Ce livre historique peut contenir de nombreuses coquilles et du texte manquant. Les acheteurs peuvent generalement telecharger une copie gratuite scannee du livre original (sans les coquilles) aupres de l'editeur. Non reference. Non illustre. 1838 edition. Extrait: ...a tetat naissant, et particularite relative a ce principe dans quelques legumineuses. Afin de rechercher si les memes proprietes existaient dans l'amidon, a l'etat naissant ou tres jeune, j'examinai cette secretion au moment ou elle se montre dans les cotyledons encore baignes par le liquide sucre de l'ovule du pisum sativum. Ses grains tres petits alors, offrent aussi les caracteres physiques et chimiques qui precedent, et ceux que nous exposerons plus loin; une particularite remarquable dans leurs formes a ete decrite et figuree pi. 4 fig-' ' ' Dans les cotyledons de la feve commune, on trouve des grains d'amidon plus sinueux encore. L'amidon extrait des haricots et des lentilles presente des grains qui se dessinent par des contours moins sinueux que les precedens. Enfin, l'amidon en tres petite quantite dans les-graines de Colutea arborescens (Baguenaudier), est en grains excessivement petits, qui sont arrondis quoique plus ou moins irreguliers. X. Botak.--Stptrmlre. i La configuration sinueuse, contournee ou vermiforme, observee dans plusieurs graines des legumineuses, ne se retrouve donc pas dans toutes au meme degre; elle offrfun exemple de plus des varietes de formes que peut affecter l'amidon dans les circonstances legerement variables, ou se produit cette secretion, sans que les caracteres physiques essentiels ni la composition chimique soient differentes.;; ..., r..', ', ., Amidon completement epure, ...
Author: Hans-Henning Kausch
Publisher: Springer Science & Business Media
ISBN: 9783540261551
Category : Technology & Engineering
Languages : en
Pages : 420
Get Book Here
Book Description
Ce livre historique peut contenir de nombreuses coquilles et du texte manquant. Les acheteurs peuvent generalement telecharger une copie gratuite scannee du livre original (sans les coquilles) aupres de l'editeur. Non reference. Non illustre. 1838 edition. Extrait: ...a tetat naissant, et particularite relative a ce principe dans quelques legumineuses. Afin de rechercher si les memes proprietes existaient dans l'amidon, a l'etat naissant ou tres jeune, j'examinai cette secretion au moment ou elle se montre dans les cotyledons encore baignes par le liquide sucre de l'ovule du pisum sativum. Ses grains tres petits alors, offrent aussi les caracteres physiques et chimiques qui precedent, et ceux que nous exposerons plus loin; une particularite remarquable dans leurs formes a ete decrite et figuree pi. 4 fig-' ' ' Dans les cotyledons de la feve commune, on trouve des grains d'amidon plus sinueux encore. L'amidon extrait des haricots et des lentilles presente des grains qui se dessinent par des contours moins sinueux que les precedens. Enfin, l'amidon en tres petite quantite dans les-graines de Colutea arborescens (Baguenaudier), est en grains excessivement petits, qui sont arrondis quoique plus ou moins irreguliers. X. Botak.--Stptrmlre. i La configuration sinueuse, contournee ou vermiforme, observee dans plusieurs graines des legumineuses, ne se retrouve donc pas dans toutes au meme degre; elle offrfun exemple de plus des varietes de formes que peut affecter l'amidon dans les circonstances legerement variables, ou se produit cette secretion, sans que les caracteres physiques essentiels ni la composition chimique soient differentes.;; ..., r..', ', ., Amidon completement epure, ...
Author: Hans-Henning Kausch
Publisher: Springer Science & Business Media
ISBN: 9783540261629
Category : Technology & Engineering
Languages : en
Pages : 288
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Book Description
Author: Hans-Henning Kausch
Publisher: Springer
ISBN: 9783540316008
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Author: Charles E. Carraher Jr.
Publisher: CRC Press
ISBN: 1466552204
Category : Science
Languages : en
Pages : 794
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Book Description
Most of the advancements in communication, computers, medicine, and air and water purity are linked to macromolecules and a fundamental understanding of the principles that govern their behavior. These fundamentals are explored in Carraher's Polymer Chemistry, Ninth Edition. Continuing the tradition of previous volumes, the latest edition provides a well-rounded presentation of the principles and applications of polymers. With an emphasis on the environment and green chemistry and materials, this edition offers detailed coverage of natural and synthetic giant molecules, inorganic and organic polymers, biomacromolecules, elastomers, adhesives, coatings, fibers, plastics, blends, caulks, composites, and ceramics. Using simple fundamentals, this book demonstrates how the basic principles of one polymer group can be applied to all of the other groups. It covers reactivities, synthesis and polymerization reactions, techniques for characterization and analysis, energy absorption and thermal conductivity, physical and optical properties, and practical applications. This edition includes updated techniques, new sections on a number of copolymers, expanded emphasis on nanotechnology and nanomaterials, and increased coverage of topics including carbon nanotubes, tapes and glues, photochemistry, and more. With topics presented so students can understand polymer science even if certain parts of the text are skipped, this book is suitable as an undergraduate as well as an introductory graduate-level text. The author begins most chapters with theory followed by application, and generally addresses the most critical topics first. He provides all of the elements of an introductory text, covering synthesis, properties, applications, and characterization. This user-friendly book also contains definitions, learning objectives, questions, and additional reading in each chapter.
Author: Mike Jenkins
Publisher: Elsevier
ISBN: 0857096516
Category : Medical
Languages : en
Pages : 293
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Book Description
Given the widespread use of polymers in medical devices, the durability and reliability of this material in use is an area of critical importance. Durability and reliability of medical polymers reviews the performance of both bioresorbable and non-bioresorbable medical polymers.Part one provides a review of the types and properties of bioresorbable medical polymers. The effect of molecular structure on properties is discussed, along with the processing of bioresorbable and other polymers for medical applications. Transport phenomena and the degradation of bioresorbable medical polymers are reviewed, before an exploration of synthetic bioresorbable polymers and their use in orthopaedic tissue regeneration. Part two goes on to explore the durability and reliability of non-bioresorbable medical polymers, and wear processes in polymer implants and ageing processes of biomedical polymers in the body are discussed in depth, before an investigation into manufacturing defects and the failure of synthetic polymeric medical devices.With its distinguished editors and international team of expert contributors, Durability and reliability of medical polymers is an essential tool for all materials scientists, researchers and engineers involved in the design, development and application of medical polymers, whilst also providing a helpful overview of the subject for biologists, chemist and clinicians. - Comprehensively examines the performance of both bioresorbable and non-bioresorbable medical polymers - Discusses the processing of bioresorbable and other polymers for medical applications, before reviewing the degradation of bioresorbable medical polymers - Explores the durability and reliability of non-bioresorbable medical polymers and discusses wear processes in polymer implants and ageing processes of biomedical polymers in the body
Author: Charles E. Carraher Jr.
Publisher: CRC Press
ISBN: 1439809569
Category : Technology & Engineering
Languages : en
Pages : 804
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Book Description
Updated to reflect a growing focus on green chemistry in the scientific community and in compliance with the American Chemical Society’s Committee on Professional Training guidelines, Carraher’s Polymer Chemistry, Eighth Edition integrates the core areas that contribute to the growth of polymer science. It supplies the basic understanding of polymers essential to the training of science, biomedical, and engineering students. New in the Eighth Edition: Updating of analytical, physical, and special characterization techniques Increased emphasis on carbon nanotubes, tapes and glues, butyl rubber, polystyrene, polypropylene, polyethylene, poly(ethylene glycols), shear-thickening fluids, photo-chemistry and photophysics, dental materials, and aramids New sections on copolymers, including fluoroelastomers, nitrile rubbers, acrylonitrile-butadiene-styrene terpolymers, and EPDM rubber New units on spliceosomes, asphalt, and fly ash and aluminosilicates Larger focus on the molecular behavior of materials, including nano-scale behavior, nanotechnology, and nanomaterials Continuing to provide a user-friendly approach to the world of polymeric materials, the book allows students to integrate their chemical knowledge and establish a connection between fundamental and applied chemical information. It contains all of the elements of an introductory text with synthesis, property, application, and characterization. Special sections in each chapter contain definitions, learning objectives, questions, and additional reading, with case studies woven into the text fabric. Symbols, trade names, websites, and other useful ancillaries appear in the appendices to supplement the text.
Author: Wolfgang Binder
Publisher: Springer
ISBN: 354068588X
Category : Technology & Engineering
Languages : en
Pages : 215
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Book Description
Control of polymeric structure is among the most important endeavours of modern macromolecular science. In particular, tailoring the positioning and strength of intermolecular forces within macromolecules by synthetic me- odsandthusgaining structuralcontrolover the?nalpolymeric materials has become feasible, resulting in the?eld of supramolecular polymer science. - sides other intermolecular forces, hydrogen bonds are unique intermolecular forces enabling the tuning of material properties via self-assembly processes -1 overawiderangeofinteractionstrengthrangingfromseveralkJmol tosev- -1 eraltensofkJmol . Centralfortheformationofthesestructuresareprecursor molecules of small molecular weight (usually lower than 10 000), which can assembleinsolidorsolutiontoaggregatesofde?nedgeometry. Intermolecular hydrogenbondsatde?nedpositionsofthesebuildingblocksaswellastheir- spectivestartinggeometryandtheinitialsizedeterminethemodeofassembly into supramolecular polymers forming network-, rodlike-,?brous-, disclike-, helical-, lamellar- and chainlike architectures. In all cases, weak to strong hydrogen-bondinginteractionscanactasthecentralstructure-directingforce fortheorganizationofpolymerchainsandthusthe?nalmaterials'properties. Theimportantcontributionofhydrogenbondstotheareaofsupramole- lar polymer chemistry is de?nitely outstanding, most of all since the potency of hydrogen-bonding systems has been found to be unique in relation to other supramolecular interactions. Thus the high level of structural diversity of many hydrogen-bonding systems as well as their high level of direction- ity and speci?city in recognition-phenomena is unbeaten in supramolecular chemistry. The realization, that their stability can be tuned over a wide range of binding strength is important for tuning the resulting material prop- ties, ranging from elastomeric to thermoplastic and even highly crosslinked duroplastic structures and networks. On the basis of the thermal reversib- ity, new materials with highly tunable properties can now be prepared, - ing able to change their mechanical and optoelectronic properties with very smallchangesofexternalstimuli. Thusthe?eldofhydrogen-bondedpolymers forms the basis for stimuli responsive and adaptable materials of the future.
Author: Robert J. Young
Publisher: CRC Press
ISBN: 1439894159
Category : Science
Languages : en
Pages : 690
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Book Description
Thoroughly updated, this long-awaited new edition of a bestselling text provides extensive, detailed, and balanced coverage of polymer chemistry and polymer physics, spanning synthesis, characterization, bulk properties and morphology, and mechanical and electrical properties of polymers. The material has been completely reorganized and expanded to offer a coherent format for teaching and learning the fundamental aspects of contemporary polymer science. This edition incorporates the most important developments that have occurred in the past two decades, including "living" radical polymerization, supramolecular polymerization, and block and graft copolymer synthesis methods.
Author: Mariam Al Ali AlMaadeed
Publisher: Elsevier
ISBN: 0128173033
Category : Technology & Engineering
Languages : en
Pages : 674
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Book Description
Polymer Science and Innovative Applications: Materials, Techniques, and Future Developments introduces the science of innovative polymers and composites, their analysis via experimental techniques and simulation, and their utilization in a variety of application areas. This approach helps to unlock the potential of new materials for product design and other uses. The book also examines the role that these applications play in the human world, from pollution and health impacts, to their potential to make a positive contribution in areas including environmental remediation, medicine and healthcare, and renewable energy. Advantages, disadvantages, possibilities, and challenges relating to the utilization of polymers in human society are included. - Presents the latest advanced applications of polymers and their composites and identifies key areas for future development - Introduces the simulation methods and experimental techniques involved in the modification of polymer properties, supported by clear and detailed images and diagrams - Supports an interdisciplinary approach, enabling readers across different fields to harness the power of new materials for innovative applications
Author: Charles E. Carraher Jr.
Publisher: CRC Press
ISBN: 1498737498
Category : Science
Languages : en
Pages : 994
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Book Description
Carraher's Polymer Chemistry, Tenth Edition integrates the core areas of polymer science. Along with updating of each chapter, newly added content reflects the growing applications in Biochemistry, Biomaterials, and Sustainable Industries. Providing a user-friendly approach to the world of polymeric materials, the book allows students to integrate their chemical knowledge and establish a connection between fundamental and applied chemical information. It contains all of the elements of an introductory text with synthesis, property, application, and characterization. Special sections in each chapter contain definitions, learning objectives, questions, case studies and additional reading.
