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Light Scattering Studies Of Molecular Dynamics In Molecular Crystals Liquid Crystals And Polymers For Applications In Chemical Defense
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Book Synopsis Light Scattering Studies of Molecular Dynamics in Molecular Crystals, Liquid Crystals and Polymers for Applications in Chemical Defense by : Elliot R. Bernstein
Download or read book Light Scattering Studies of Molecular Dynamics in Molecular Crystals, Liquid Crystals and Polymers for Applications in Chemical Defense written by Elliot R. Bernstein and published by . This book was released on 1985 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 16 papers have appeared in the literature dealing with both the theoretical and experimental (light scattering) investigation of phase transitions and critical phenomena in simple molecular solids. New Brillouin scattering data have been obtained for benzil single crystals near the phase transition at 83.5K. A mean field approach to the dynamics of structural phase transitions in molecular crystals has been developed. Brillouin scattering study of the successive phase transitions in methmmonium iron chloride. In addition to the magnetic transition at lwo temperature, this system also possesses successive structural phase transitions. These have been studied by means of lattice dynamics and far infrared spectroscopy, birefringenence, x-ray and neutron diffraction, specific heat and ultrasonic sound velocity measurements, and ultrasonic attentuation measurements. Also pursued were high pressure Raman, Brillouin, and Rayleigh scattering studies of benzene in a diamond anvil cell.
Book Synopsis Light Scattering from Macromolecular Systems - Molecular Crystals and Polymers by :
Download or read book Light Scattering from Macromolecular Systems - Molecular Crystals and Polymers written by and published by . This book was released on 1981 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research objectives of this grant are to (1) characterize phase transitions theoretically and experimentally in molecular crystal systems, (2) use the above understanding gained by light scattering studies and theoretical interpretation to apply to the more complex system of lyotropic liquid crystals, and (3) knowledge gained on the model systems of increasing complexity is then applied to polymer liquid crystals and solid polymers as observed by laser light scattering techniques. Objective one has been definitely achieved as can be seen from the number of papers written in the last few years. Systems to have been experimentally and theoretically discussed are: trioxane, triazine, benzil, and chloranil. Others still to be investigated are: biphenyl, urea, thiourea, and hexamethyl benzene. Studies of lyotropic liquid crystals (sodium decyl sulfate, sodium sulfate, decanol, water) have been progressed to the point at which we will be reporting this data shortly. The major findings are: a number of phase transitions occur between 20 and 60 C; these transitions evidence strong critical behavior and long correlation times for fluctuations; and liquid crystals can be studied by light scattering in a unique and meaningful manner. Finally, some polymer studies were started which will be continued into the coming contract period. Spectra of solid powders, ribbons, and liquid crystals of PBT and solid PBO were obtained.
Author :United States. Air Force. Directorate of Chemical and Atmospheric Sciences Publisher : ISBN 13 : Total Pages :126 pages Book Rating :4.:/5 (3 download)
Book Synopsis AFOSR Chemical & Atmospheric Sciences Program Review by : United States. Air Force. Directorate of Chemical and Atmospheric Sciences
Download or read book AFOSR Chemical & Atmospheric Sciences Program Review written by United States. Air Force. Directorate of Chemical and Atmospheric Sciences and published by . This book was released on 1984 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Light Scattering by : Bruce J. Berne
Download or read book Dynamic Light Scattering written by Bruce J. Berne and published by Courier Corporation. This book was released on 2013-07-24 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lasers play an increasingly important role in a variety of detection techniques, making inelastic light scattering a tool of growing value in the investigation of dynamic and structural problems in chemistry, biology, and physics. Until the initial publication of this work, however, no monograph treated the principles behind current developments in the field.This volume presents a comprehensive introduction to the principles underlying laser light scattering, focusing on the time dependence of fluctuations in fluid systems; it also serves as an introduction to the theory of time correlation functions, with chapters on projection operator techniques in statistical mechanics. The first half comprises most of the material necessary for an elementary understanding of the applications to the study of macromolecules, or comparable sized particles in fluids, and to the motility of microorganisms. The study of collective (or many particle) effects constitutes the second half, including more sophisticated treatments of macromolecules in solution and most of the applications of light scattering to the study of fluids containing small molecules.With its wide-ranging discussions of the many applications of light scattering, this text will be of interest to research chemists, physicists, biologists, medical and fluid mechanics researchers, engineers, and graduate students in these areas.
Book Synopsis Applications of Dynamic Light Scattering in Chemical Engineering by : Kirtland L. Linegar
Download or read book Applications of Dynamic Light Scattering in Chemical Engineering written by Kirtland L. Linegar and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Light Scattering in Liquids and Macromolecular Solutions by : V. Degiorgio
Download or read book Light Scattering in Liquids and Macromolecular Solutions written by V. Degiorgio and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains most of the papers presented at the "Workshop on Quasielastic Light Scattering Studies of Fluids and Macromolecular Solutions" held at CISE, Segrate (Milano), Italy, from 11 to 13 May, 1979. Quasielastic light scattering (also called self-beating spectroscopy or intensity correlation spectroscopy) is the technique, introduced by Benedek and coworkers and by Cummins and coworkers about 15 years ago, by which dynamical information about a scattering medium is obtained through the measurement of the power spectrum (or the intensity correlation function) of the laser light scattered from the medium. The technique received in the early seventies a considerable impulse from the development of real-time fast digital correlators. The aim of the Workshop was to bring together a selected number of researchers in order to discuss recent developments in quasielastic light scattering and related optical methods and to report about new applications of the technique in physics, chemistry and biology. The first two days of the meeting were devoted to the oral presentations of papers. In the third day an informal session was held which included a very lively and thorough discussion of the highlights of the Workshop. Most part of the technical problems were debated during the informal session and during the subsequent visits to the light scattering laboratory in CISE.
Book Synopsis Introduction to Dynamic Light Scattering by Macromolecules by : Kenneth S Schmitz
Download or read book Introduction to Dynamic Light Scattering by Macromolecules written by Kenneth S Schmitz and published by Elsevier. This book was released on 2012-12-02 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Dynamic Light Scattering by Macromolecules provides an introduction to the basic concepts of dynamic light scattering (DLS), with an emphasis on the interpretation of DLS data. It presents the appropriate equations used to interpret DLS data. The material is presented in order of increasing complexity of the systems under examination, ranging from dilute solutions of noninteracting particles to concentrated multicomponent solutions of strongly interacting particles and gels. Problems are presented at the end of each chapter to emphasize these concepts. Since a major emphasis of this textbook is the interpretation of DLS data obtained by polarized light scattering studies on macromolecular solutions, the results of complementary experimental techniques are also presented in order to gain insight into the dynamics of these systems. This textbook is intended for (1) advanced undergraduate students and graduate students in the chemical, physical, and biological sciences; (2) scientists who might wish to apply DLS methods to systems of interest to them but who have no formal training in the field of DLS; and (3) those who are simply curious as to the type of information that might be obtained from DLS techniques.
Book Synopsis Dynamic Light Scattering by : R. Pecora
Download or read book Dynamic Light Scattering written by R. Pecora and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the twenty years since their inception, modern dynamic light-scattering techniques have become increasingly sophisticated, and their applications have grown exceedingly diverse. Applications of the techniques to problems in physics, chemistry, biology, medicine, and fluid mechanics have prolifer ated. It is probably no longer possible for one or two authors to write a monograph to cover in depth the advances in scattering techniques and the main areas in which they have made a major impact. This volume, which we expect to be the first of aseries, presents reviews of selected specialized areas by renowned experts. It makes no attempt to be comprehensive; it emphasizes a body of related applications to polymeric, biological, and colloidal systems, and to critical phenomena. The well-known monographs on dynamic light scattering by Berne and Pecora and by Chu were published almost ten years ago. They provided comprehensive treatments of the general principles of dynamic light scat tering and gave introductions to a wide variety of applications, but natu rally they could not treat the new applications and advances in older ones that have arisen in the last decade. The new applications include studies of interacting particles in solution (Chapter 4); scaling approaches to the dynamics of polymers, including polymers in semidilute solution (Chapter 5); the use of both Fabry-Perot interferometry and photon correlation spectroscopy to study bulk polymers (Chapter 6); studies of micelIes and microemulsions (Chapter 8); studies of polymer gels (Chapter 9).
Book Synopsis Molecular Scattering of Light by : I. L. Fabelinskii
Download or read book Molecular Scattering of Light written by I. L. Fabelinskii and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of the laser and the subsequent expansion of research in the field of molecular scattering of light tend to ob scure the vast literature that accumulated on this subject during th'e last fifty years. The appearance of the Russian edition of Dr. Fabelinskii's book, just as this laser-induced explosion in light-scattering research took place, served to put the earlier work in its proper perspective. However, the book lacked any appreci able coverage of the laser work. Fortunately, Dr. Fabelinskii has taken advantage of the time between the appearance of the Russian text and its translation into English to expand greatly the sections devoted to areas in which laser research has made such interesting and vital additions, At the same time, revisions and insertions have been made throughout the text, so that the English translation is virtually a second edition of this useful work. The translator wishes to express his thanks here to Dr. Fa belinskii for making the revisions, corrections, and additions availahle for the English language work. He is also grateful to his graduate student, Mark B. Moffett, who prepared the index and who, during the course of its preparation, made a large number of crit ical comments and corrections that have enhanced the quality of the final product.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994-11 with total page 1796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Light Scattering Studies of Molecular Dynamics in Solutions and Liquids by : M. Whittle
Download or read book Light Scattering Studies of Molecular Dynamics in Solutions and Liquids written by M. Whittle and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Light Scattering from Polymers written by and published by Springer. This book was released on 2013-10-03 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Scattering Methods to the Dynamics of Polymer Systems by : B. Ewen
Download or read book Application of Scattering Methods to the Dynamics of Polymer Systems written by B. Ewen and published by Springer. This book was released on 1993 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 27th Europhysics Conference on Macromolecular Physics focused on applications of scattering methods to the dynamics of polymer dense systems and covered Rayleigh-Brillouin scattering and photon correlation spectroscopy, quasi-elastic neutron scattering, holographic methods, real time X-ray and neutron scattering techniques as well as the treatment of theoretical models and computer simulations of polymer dynamics.
Book Synopsis Small Angle X-ray Scattering and Quasielastic Light Scattering Studies of Polymer Liquid Crystals by : Xiaolei Ao
Download or read book Small Angle X-ray Scattering and Quasielastic Light Scattering Studies of Polymer Liquid Crystals written by Xiaolei Ao and published by . This book was released on 1992 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Classical Light Scattering from Polymer Solutions by : Pavel Kratochvíl
Download or read book Classical Light Scattering from Polymer Solutions written by Pavel Kratochvíl and published by Elsevier Publishing Company. This book was released on 1987 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Classical light scattering from dilute polymer solutions is one of the few absolute, rigorously founded methods for the determination of molar mass and molecular size of macromolecular substances, and for the quantitative characterization of solute-solvent interaction. Light scattering is thus one of the most fundamental methods of the physical chemistry of polymers, and the present book provides an introduction to this technique. elements of practice and application of light scattering. Although there are a number of advanced monographs and reviews currently available on light scattering from polymer solutions, the appearance of this book marks the first introductory text of its kind. Polymer chemists wishing to make a start in light scattering will find this book an indispensable aid in their work.
Book Synopsis Proceedings of the 2nd International Topical Meeting on "Optics of Liquid Crystals: Optics and Interfacial Phenomena in Liquid Crystals and Polymers" by : G. Barbero
Download or read book Proceedings of the 2nd International Topical Meeting on "Optics of Liquid Crystals: Optics and Interfacial Phenomena in Liquid Crystals and Polymers" written by G. Barbero and published by CRC Press. This book was released on 1990 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis LIGHT SCATTERING BY LIQUID CRYSTALS. by : R. S. Stein
Download or read book LIGHT SCATTERING BY LIQUID CRYSTALS. written by R. S. Stein and published by . This book was released on 1968 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scattering of light by liquid crystals is primarily a result of orientation fluctuations and is formally similar to the scattering by solid crystalline polymers. Some experimental results for the photographic scattering of mesophases of cholesteryl myristate are presented. The patterns for the cholesteric state are similar to those for spherulitic polymers and are analyzed using the theory for scattering from media exhibiting non-random orientation correlations. As a result of the light scattering studies it may be shown that the cholesteric state is characterized by disc-like correlations, while the smectic state and solid cholesteryl myristate both show random orientation correlations. (Author).
