Download or read book Broadband Dielectric Spectroscopy of Polymeric Systems written by Andreas Schönhals and published by . This book was released on 2011 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dielectric Spectroscopy of Polymeric Materials written by James Patrick Runt and published by . This book was released on 1997 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with a complete discussion of the fundamentals of dielectric spectroscopy, this book examines in detail the methods used in data modeling and in such specialized techniques as high-frequency dielectric measurements and thermally stimulated currents. The book covers applications in a range of polymeric systems including solutions, blends, and liquid crystals.
Download or read book Broadband Dielectric Spectroscopy written by Friedrich Kremer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: Both an introductory course to broadband dielectric spectroscopy and a monograph describing recent dielectric contributions to current topics, this book is the first to cover the topic and has been hotly awaited by the scientific community.
Download or read book Broadband Dielectric Spectroscopy written by William Henry Hunter Woodward and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is about Broadband Dielectric Spectroscopy as a Modern Analytical Technique"--
Download or read book Recent Advances in Broadband Dielectric Spectroscopy written by Yuri P. Kalmykov and published by Springer. This book was released on 2012-10-19 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume considers experimental and theoretical dielectric studies of the structure and dynamics of complex systems. Complex systems constitute an almost universal class of materials including associated liquids, polymers, biomolecules, colloids, porous materials, doped ferroelectric crystals, nanomaterials, etc. These systems are characterized by a new "mesoscopic" length scale, intermediate between molecular and macroscopic. The mesoscopic structures of complex systems typically arise from fluctuations or competing interactions and exhibit a rich variety of static and dynamic behaviour. This growing field is interdisciplinary; it complements solid state and statistical physics, and overlaps considerably with chemistry, chemical engineering, materials science, and biology. A common theme in complex systems is that while such materials are disordered on the molecular scale and homogeneous on the macroscopic scale, they usually possess a certain degree of order on an intermediate, or mesoscopic, scale due to the delicate balance of interaction and thermal effects. In the present Volume it is shown how the dielectric spectroscopy studies of complex systems can be applied to determine both their structures and dynamics.
Download or read book Probing Polymer Dynamics Using High Throughput Broadband Dielectric Spectroscopy written by Xiao Zhang and published by . This book was released on 2018 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The non-Arrehnius behaviors of glass transition dynamics have attracted a great deal of research efforts. Despite challenges, several key parameters have been identified, including glass transition temperature, fragility, and the stretching exponent [beta]. A deeper understanding of the dynamic correlations among these parameters is useful for discovering new theories and developing next-generation materials. Besides the dynamic correlations, it is worthwhile to investigate the tunability of these parameters. A systematic investigation of these underlying connections requires screening a large number of samples, which poses a great challenge for the traditional BDS setup. The goals of this dissertation are, thus, to: 1) develop a high-throughput experimental setup for BDS; 2) further investigate the underlying connections among Tg, m, and the stretching exponent [beta]; and 3) investigate the tunability of Tg and m through copolymerization and nanoparticles. In the first part of our research, we have successfully developed High Throughput Broadband Dielectric Spectroscopy (HTBDS), a novel strategy to probe dynamics of a large number of samples within a short amount of time. The results agree well with the commercially available BDS setup. In this section, the overall setup of testbed, temperature control, structure of the LabView program, and operation protocols have been discussed. Following these developed protocols, we used three polymers as test materials to validate the instrument. The results are in agreement with results from the commercially available setup. Consequently, the HTBDS setup realizes an order of magnitude improvement of experimental throughput. Upon validating the HTBDS instrument, in the second part of this research, we applied this new strategy to probe a series of acrylate-based statistical copolymers. Tg, m, and the stretching exponent [beta], and the underlying dynamical correlations have been investigated. The results on Tg agree with the Fox glass transition mixing rule based on the bulk mass concentration, indicating the absence of self-concentration effects observed from other systems. In terms of m, we found that fragilities at 100 s show nonmonotonic trends with comonomer compositions. Its values extrapolated at 0.001 s exhibit a roughly linear correlation with monomer concentrations. As of dynamical correlations, the stretching exponent [beta] is correlated roughly with Tg, but not with fragility. In the third part of research, we attempt to conduct a combinatorial study on the effect of additives on the polymer glass transition dynamics. First, we found that dispersion alone does not guarantee the changes of polymer dynamics, as evidenced by the results found in the PCL/surfactant-free clay systems. The dispersion level was confirmed by scattering and microscopic analysis, and the BDS results This corroborates the previous simulation efforts suggesting that such parameters as particle sizes, interfacial energy, and matrix-additive stiffness contrast play vital roles for Tg and m. Therefore, we used HTBDS to further investigate a series of polymer-nanoparticle systems with varying molecular structures for both the particles and the matrices. We have identified polymer-particle systems exhibiting both trivial and non-trivial interfacial confinement effects. Different levels of the interfacial confinement effect were employed to test the robustness of two different functional forms.
Download or read book Dynamics of Composite Materials written by Andreas Schönhals and published by Springer Nature. This book was released on 2022-03-14 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents recent developments in the field of composites, investigated by Broadband Dielectric Spectroscopy (BDS) and sheds a special focus on nanocomposites. This volume compares the results obtained by BDS with data from other methods like hyphenated calorimetry, dynamical-mechanical spectroscopy, NMR spectroscopy and neutron scattering. The addressed systems range from all kinds of model systems, such as polymers filled with spherical silica particles, advanced materials such as polymers with molecular stickers or hyperbranched polymer-based matrices to industrially significant systems, like epoxy-based materials. The book offers an excellent insight to a valuable application of dielectric spectroscopy and it is a helpful guide for every scientist who wants to study dynamics in composite materials.
Download or read book Dielectric Spectroscopy of Polymeric Materials written by Fitzgerald Runt and published by . This book was released on 1997-01-01 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with a complete discussion of the fundamentals of dielectric spectroscopy, this book examines in detail the methods used in data modeling and in such specialized techniques as high-frequency dielectric measurements and thermally stimulated currents. The book covers applications in arange of polymeric systems, includings solutions, blends, and liquid crystals.
Download or read book Polymers and Multicomponent Polymeric Systems written by Jose James and published by CRC Press. This book was released on 2019-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, multicomponent polymers have generated much interest due to their excellent properties, unique morphology and high-end applications. Book focusses on thermal, thermo-mechanical and dielectric analysis of polymers and multicomponent polymeric systems like blends, interpenetrating polymeric networks (IPNs), gels, polymer composites, nanocomposites. Through these analyses, it provides an insight into the stability of polymer systems as a function of time, processing and usage. Aimed at polymer chemists, physicists and engineers, it also covers ASTM /ISO and other standards of various measurement techniques for systematic analysis in materials science.
Download or read book Handbook of Multiphase Polymer Systems written by Abderrahim Boudenne and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 1322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase polymeric systems include a wide range of materials such as composites, blends, alloys, gels, and interpenetrating polymer networks (IPNs). A one-stop reference on multiphase polymer systems, this book fully covers the preparation, properties, and applications of advanced multiphase systems from macro to nano scales. Edited by well-respected academics in the field of multiphase polymer systems, the book includes contributions from leading international experts. An essential resource for plastic and rubber technologists, filler specialists and researchers in fields studying thermal and electrical properties.
Download or read book Dielectric Spectroscopy of Polymers written by Péter Hedvig and published by John Wiley & Sons. This book was released on 1977 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crystallization as Studied by Broadband Dielectric Spectroscopy written by Tiberio A. Ezquerra and published by Springer Nature. This book was released on 2020-10-28 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new approaches that offer a better characterization of the interrelationship between crystalline and amorphous phases. In recent years, the use of dielectric spectroscopy has significantly improved our understanding of crystallization. The combination of modern scattering methods, using either synchrotron light or neutrons and infrared spectroscopy with dielectrics, is now helping to reveal modifications of both crystalline and amorphous phases. In turn, this yields insights into the underlying physics of the crystallization process in various materials, e.g. polymers, liquid crystals and diverse liquids. The book offers an excellent introduction to a valuable application of dielectric spectroscopy, and a helpful guide for every scientist who wants to study crystallization processes by means of dielectric spectroscopy.
Download or read book Polymer Science A Comprehensive Reference written by and published by Newnes. This book was released on 2012-12-05 with total page 7752 pages. Available in PDF, EPUB and Kindle. Book excerpt: The progress in polymer science is revealed in the chapters of Polymer Science: A Comprehensive Reference, Ten Volume Set. In Volume 1, this is reflected in the improved understanding of the properties of polymers in solution, in bulk and in confined situations such as in thin films. Volume 2 addresses new characterization techniques, such as high resolution optical microscopy, scanning probe microscopy and other procedures for surface and interface characterization. Volume 3 presents the great progress achieved in precise synthetic polymerization techniques for vinyl monomers to control macromolecular architecture: the development of metallocene and post-metallocene catalysis for olefin polymerization, new ionic polymerization procedures, and atom transfer radical polymerization, nitroxide mediated polymerization, and reversible addition-fragmentation chain transfer systems as the most often used controlled/living radical polymerization methods. Volume 4 is devoted to kinetics, mechanisms and applications of ring opening polymerization of heterocyclic monomers and cycloolefins (ROMP), as well as to various less common polymerization techniques. Polycondensation and non-chain polymerizations, including dendrimer synthesis and various "click" procedures, are covered in Volume 5. Volume 6 focuses on several aspects of controlled macromolecular architectures and soft nano-objects including hybrids and bioconjugates. Many of the achievements would have not been possible without new characterization techniques like AFM that allowed direct imaging of single molecules and nano-objects with a precision available only recently. An entirely new aspect in polymer science is based on the combination of bottom-up methods such as polymer synthesis and molecularly programmed self-assembly with top-down structuring such as lithography and surface templating, as presented in Volume 7. It encompasses polymer and nanoparticle assembly in bulk and under confined conditions or influenced by an external field, including thin films, inorganic-organic hybrids, or nanofibers. Volume 8 expands these concepts focusing on applications in advanced technologies, e.g. in electronic industry and centers on combination with top down approach and functional properties like conductivity. Another type of functionality that is of rapidly increasing importance in polymer science is introduced in volume 9. It deals with various aspects of polymers in biology and medicine, including the response of living cells and tissue to the contact with biofunctional particles and surfaces. The last volume is devoted to the scope and potential provided by environmentally benign and green polymers, as well as energy-related polymers. They discuss new technologies needed for a sustainable economy in our world of limited resources. Provides broad and in-depth coverage of all aspects of polymer science from synthesis/polymerization, properties, and characterization methods and techniques to nanostructures, sustainability and energy, and biomedical uses of polymers Provides a definitive source for those entering or researching in this area by integrating the multidisciplinary aspects of the science into one unique, up-to-date reference work Electronic version has complete cross-referencing and multi-media components Volume editors are world experts in their field (including a Nobel Prize winner)
Download or read book Fractals Diffusion and Relaxation in Disordered Complex Systems Volume 133 Part B written by Yuri P. Kalmykov and published by John Wiley & Sons. This book was released on 2006-06-30 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fractals, Diffusion and Relaxation in Disordered Complex Systems is a special guest-edited, two-part volume of Advances in Chemical Physics that continues to report recent advances with significant, up-to-date chapters by internationally recognized researchers.
Download or read book Advances in Polyolefin Nanocomposites written by Vikas Mittal and published by CRC Press. This book was released on 2010-12-07 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of polymer nanocomposites, research on polyolefin nanocomposites has grown exponentially. Correcting the deficiency of a meaningful text on these important materials, Advances in Polyolefin Nanocomposites:Sums up recent advances in nanoscale dispersion of filler in polyolefinsPresents a basic introduction to polyolefin nanocomposite
Download or read book Dielectric Relaxation in Biological Systems written by Valerica Raicu and published by OUP Oxford. This book was released on 2015-07-23 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of dielectric properties of biological systems and their components is important not only for fundamental scientific knowledge but also for its applications in medicine, biology, and biotechnology. The associated technique - known as dielectric spectroscopy - has enabled researchers to quickly and accurately acquire time- or frequency-spectra of permittivity and conductivity and permitted the derivation and testing of realistic electrical models for cells and organelles. This text covers the theoretical basis and practical aspects of the study of dielectric properties of biological systems, such as water, electrolyte and polyelectrolytes, solutions of biological macromolecules, cells suspensions and cellular systems. The authors' combined efforts provide a comprehensive and cohesive book that takes advantage of the expertise of multiple scientists involved in cutting-edge research in the specific sub-fields of bio-dielectric spectroscopy while maintaining its self-consistency through numerous discussions. The first six chapters cover theoretical, methodological and experimental aspects of relaxation and dispersion in biological dielectrics at molecular, cellular and cellular aggregate level. Applications are presented in the following chapters which are organized in the order of increased complexity, beginning with pure water, amino acids and proteins, continuing with vesicles and simple cells such as erythrocytes, and then with more complex, organelle-containing cells and cellular aggregates. Due to its broad coverage, the text could be used as a reference book by researchers, and as a textbook for upper-level undergraduate classes and graduate classes in (bio) physics, medical physics, quantitative biology, and engineering.
Download or read book Dynamics in Geometrical Confinement written by Friedrich Kremer and published by Springer. This book was released on 2014-06-03 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the dynamics of low molecular weight and polymeric molecules when they are constrained under conditions of geometrical confinement. It covers geometrical confinement in different dimensionalities: (i) in nanometer thin layers or self supporting films (1-dimensional confinement) (ii) in pores or tubes with nanometric diameters (2-dimensional confinement) (iii) as micelles embedded in matrices (3-dimensional) or as nanodroplets. The dynamics under such conditions have been a much discussed and central topic in the focus of intense worldwide research activities within the last two decades. The present book discusses how the resulting molecular mobility is influenced by the subtle counterbalance between surface effects (typically slowing down molecular dynamics through attractive guest/host interactions) and confinement effects (typically increasing the mobility). It also explains how these influences can be modified and tuned, e.g. through appropriate surface coatings, film thicknesses or pore diameters. "Dynamics in Confinement" sums up the present state-of-the-art and introduces to the analytical methods of choice for the study of dynamics in nanometer-scale confinement.
