الصفحة 1
الصفحة 1
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Oligomers- Polymer Composites -Molecular Imprinting

The series Advances in Polymer Science presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and material science.It is adressed to all scientists at universities and in industry who wish to keep abreast of advances in the topics covered.As a rule, contributions are specially commissioned. The editors and publishers will, however, always be pleased to receive suggestions and supplementary information.

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New Aspects in Phosphorus Chemistry V

The use of polyphosphazenes as fluoroelastomers, flame retardants and self-extinguishing macromolecules, polymeric ionic conductors, biomaterials, and photosensitive polymeric compounds is outlined. This volume,as well as the four precedent volumes,describes only in part the huge number of original papers on phosphorus-related topics. Some further volumes will be necessary in the future to cover all aspects of this chemistry in perpetual rebirth.

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Neodymium Based Ziegler Catalysts - Fundamental Chemistry

In this volume we try to review the available literature by two independentapproaches to Nd and Ln-catalyzed diene polymerizations. In the first part ofthe volume, which is entitled “Neodymium-Based Ziegler/Natta Catalysts andtheir Application in Diene Polymerization”, a polymer chemist’s view is givenwith strong emphasis on Nd-based catalyst systems. Also technological andindustrial aspects of Nd-catalyzed diene polymerizations are addressed. In thesecond part of the volume, which is entitled “Rare-Earth Metals and AluminumGetting Close in Ziegler-type Organometallics”, a more organometallic per-spective is given and Ln-based catalyst systems are addressed. By the synopsisof these different perspectives, the reader will comprehend the complexity ofLn-based Ziegler catalyst systems and their application to the polymerizationof dienes.

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Modulated Temperature Differential Scanning Calorimetry : Theoretical and Practical Applications in Polymer Characterisation

This book provides both a basic and advanced treatment of the theory of the technique followed by a detailed exposition of its application to reacting systems, blends and semicrystalline polymers by the leaders in all of these fields. It is an essential text for anybody interested in calorimetry or polymer characterization, especially if they have found that conventional DSC cannot help them with their problems.

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Microlithography/Molecular Imprinting

The series presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and material science. It is addressed to all scientists at universities and in industry who wish to keep abreast of advances in the topics covered.Molecular recognition is central to how biological systems work. The molecular imprinting technique is a valuable polymerisation method for preparing synthetic materials able to mimic the molecular recognition phenomena present in living systems. A molecule that acts as a template is associated with functional monomers to form a complex by means of covalent linkages or noncovalent interactions. A polymerisation-crosslinking reaction is then performed around this complex. Upon removal of the template species, functionalised cavities, that have memorized the special features and bonding preferences of the template, are left inside the polymer network.

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Metathesis Polymerization

Clearly illustrated and demonstrated by the entire series of Advances in Polymer Science., the area of polymer science is a rapidly developing and growing field, strongly influencing other areas of chemistry. Among other polymerization techniques, those based on metathesis polymerization have experienced significant progress. With a rapidly developing armory of initiators on hand, one is now capable of polymerizing various types of functional monomers by metathesis-based techniques.The latest developments in all these areas of metathesis-based polymerizations are summarized in this book. It is designed to attract equally students and advanced scientists working in the areas of polymer science, physical, and organometallic chemistry by providing both extensive background information and up-to-date interdisciplinary knowledge. Special consideration has been given to the literature sections in order to facilitate further reading.

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Metallocenes in Regio- and Stereoselective Synthesis

Metallocene is a well known sandwich complex with two cyclopentadienyl ligands such as ferrocene. Recently, such metallocene compounds have been found to be very characteristic and they have become very important, not only in the area of organic synthesis, but also in polymerization in industry. Metal complexes with one cyclopentadienyl ligand have also become popular as half sandwich complexes. The number of researchers in the field of metallocenes has increased rapidly. However, the origin of the characteristic reactivity of metallocenes is not fully understood. In this volume, the chemistry of metal complexes with at least one cyclopentadienyl ligand is comprehensively covered by leading experts. Reactions discussed here are (i) natural product synthesis, (ii) catalytic asymmetric synthesis, (iii) cyclization reactions, (iv)catalytic reactions, (iv) polymerization reactions and (v) carbon-carbon bond cleavage reactions. The reader will have access to useful information about the current state of metallocene chemistry.

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Intrinsic Molecular Mobility and Toughness of Polymers II

The series Advances in Polymer Science presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and material science . the authors highlight the dual role of segmental jumps and displacements to improve toughness by energy dissipation and relaxation of critical stresses and to influence without exception all damage mechanisms. The dynamic response of a chain segment to thermo-mechanical excitation strongly depends on in-chain cooperative motions. By combining the powerful techniques of multi-dimensional Nuclear Magnetic Resonance and of dielectric and dynamic mechanical analysis Monnerie,

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Intrinsic Molecular Mobility and Toughness of Polymers I

The series Advances in Polymer Science presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and material science . the authors highlight the dual role of segmental jumps and displacements to improve toughness by energy dissipation and relaxation of critical stresses and to influence without exception all damage mechanisms. The dynamic response of a chain segment to thermo-mechanical excitation strongly depends on in-chain cooperative motions. By combining the powerful techniques of multi-dimensional Nuclear Magnetic Resonance and of dielectric and dynamic mechanical analysis Monnerie,

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Interphases and Mesophases in Polymer Crystallization III

In polymer crystallization the challenge is to identify and clarify the transformations by which chain molecules pass from a disordered, molten state to the ordered supra-molecular organization known as the semi-crystalline state. The subject is highly relevant in terms of both basic science and technology; it is indeed clear that many modern applications require complete control of the structure and the morphology of polymers from macroscopic dimensions down to below the nanoscale. As a simple example, making the crystallites in a polymer fiber equally oriented and reducing the number of chain folds (or hairpins) therein, usually turn out to be very favorable requisites for mechanical performance . .This series presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and material science. It is adressed to ali scientists at universities and in industry who wish to keep abreast of advances in the topics covered

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Interphases and Mesophases in Polymer Crystallization II

Polymer crystallisation is a field of science whose widespread practica! and technological implications add to its scientific relevance. Unlike most molecular substances, synthetic polymers consist oflong, linear chains usually covering a broad distribution of molecular lengths. It is no surprise that only rarely may they give rise to regularly shaped crystals, if at all. As a rule, especially from the bulk state, polymers solidify as very tiny crystals interspersed in an amorphous matrix and randomly interconnected by disordered chains.This series presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and material science. It is adressed to ali scientists at universities and in industry who wish to keep abreast of advances in the topics covered

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Inorganic Polymeric Nanocomposites and Membranes

This series presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and materials science. It is addressed to all scientists at universities and in industry who wish to keep abreast of advances in the topics covered.This Book reviews different methods of synthesis of polysilalkylene or silarylene siloxanes that are sometimes called "hybrid" silicones. This special type of silicone has been developed to avoid the drawback of the depolymerization of classical polysiloxanes in certain conditions and to obtain elastomers with enhanced thermal and fuel resistance properties.

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Hydrogen bonded polymers

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, The important contribution of hydrogen bondstotheareaofsupramole- 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.

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Functional Materials and Biomaterials

This book has the highest impact factor of all publications ranked by ISI within polymer science. It contains short and concise reports on physics and chemistry of polymers, each written by the world renowned experts. It remains valid and useful after 5 or 10 years.

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Encyclopedic Dictionary of Polymers

The editor offers scientists, engineers, academia, and others interested in adhesives, coatings, elastomers, inks, plastics, and textiles a valuable communication tool within this book. In addition, the more recent innovations and biocompatible polymers and adhesives products have necessitated inclusion into any lexicon that addresses polymeric materials. Communication among scientific and engineering personnel has always been of critical importance, andas in any technical field, the terms and descriptions of materials and processes lag the availability of a manual or handbook that would benefit individuals working and studying in scientific and engineering disciplines.

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Crosslinking in Materials Science : Technical Applications

This series presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and materials science. It is addressed to all scientists at universities and in industry who wish to keep abreast of advances in the topics covered.

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Computational Materials Chemistry : Methods and Applications

As a result of the advancements in algorithms and the huge increase in speed of computers over the past decade, electronic structure calculations have evolved into a valuable tool for characterizing surface species and for elucidating the pathways for their formation and reactivity. It is also now possible to calculate, including electric field effects, STM images for surface structures. To date the calculation of such images has been dominated by density functional methods, primarily because the computational cost of - curate wave-function based calculations using either realistic cluster or slab models would be prohibitive. DFT calculations have proven especially valuable for elucidating chemical processes on silicon and other semiconductor surfaces. However, it is also clear that some of the systems to which DFT methods have been applied have large non-dynamical correlation effects, which may not be properly handled by the current generation of Kohn-Sham-based density functionals. For example, our CASSCF calculations on the Si(001)/acetylene system reveal that at some geometries there is extensive 86 configuration mixing. This, in turn, could signal problems for DFT cal- lations on these systems.

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Chromatography for Sustainable Polymeric Materials : Renewable, Degradable and Recyclable

This volume is a valuable contribution to sustainability research. … This interesting, well-written book provides the reader with an excellent resource on how to effectively use simple chromatographic techniques to aid in determining processing conditions, additive formulations, quality control, service life, degradation pathways, and more.

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Chitin and Chitosan : Properties and Applications

Chitin and Chitosan: Properties and Applications presents a comprehensive review of the isolation, properties and applications of chitin and chitosan. These promising biomaterials have the potential to be broadly applied and there is a growing market for these biopolymers in areas such as medical and pharmaceutical, packaging, agricultural, textile, cosmetics, nanoparticles and more.

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Analytical Ultracentrifugation of Polymers and Nanoparticles

Analytical ultracentrifugation (AUC) is a powerful method for the characterization of polymers, biopolymers, polyelectrolytes, nanoparticles, dispersions, and other colloidal systems. The method is able to determine the molar mass, the particle size, the particle density and interaction parameters like virial coefficients and association constants. Because AUC is also a fractionation method, the determination of the molar mass distribution, the particle size distribution, and the particle density distribution is possible. A special technique, the density gradient method, allows fractionating heterogeneous samples according to their chemical nature that means being able to detect chemical heterogeneity.

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