Download or read book A Study of the Internal Motion of a Polymer by Fluorescence Depolarization written by Rita Anne Snowden and published by . This book was released on 1973 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dual Phase Depolarization Analysis written by Jean Pierre Ibar and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-05-09 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes and explains thermally stimulated current depolarization and thermal sampling. Electrical charges are created in the dielectric material by a voltage field. Analyzing how the current discharges provides insights into the atomic structure of the polymer, its organization and free volume. The book also includes case studies teaching how to apply the characterization techniques to understand the behavior of polymers.
Download or read book Lasers in Polymer Science and Technolgy written by Jan F. Rabek and published by CRC Press. This book was released on 1989-11-30 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this 4-volume set is to examine some of the applications of lasers in polymer science and technology. Now available for the first time, up-to-date information on this fascinating subject is compiled and presented in compact form. This set focuses on current research and developments in the application of lasers in polymer and biopolymer chemistry. It includes experimental and theoretical details, apparatus, techniques, and applications. This set is a useful source for researchers, students, polymer chemists, and physicists involved in this astonishing field of high technology.
Download or read book Fluorescence Studies of Polymer Containing Systems written by Karel Procházka and published by Springer. This book was released on 2016-02-03 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the application of fluorescence spectroscopy in polymer research. The first chapters outline the basic principles of the conformational and dynamic behavior of polymers and review the problems of polymer self-assembly. Subsequent chapters introduce the theoretical principles of advanced fluorescence methods and typical examples of their application in polymer science. The book closes with several reviews of various fluorescence applications for studying specific aspects of polymer-solution behavior. It is a useful resource for polymer scientists and experts in fluorescence spectroscopy alike, facilitating their communication and cooperation.
Download or read book Photophysical Study of Polymer Structure and Dynamics written by Yoeng-Huie Jeng and published by . This book was released on 1988 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Photophysics Photochemistry written by James Guillet and published by CUP Archive. This book was released on 1985 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to photochemistry and photophysics. Polymer structure and reactivity. Diffusion and permeability in polymers. Determination of scission and crosslinking in polymers. Photoprocesses in solid polymer matrices. Fluorescence. Excimers and exciplexes. Phosphorescence. Energy transfer and migration in polymers. Photochemistry of carbonyl-containing polymers. Photopolymerization. Photocyclization. Miscellaneous photoprocesses. Photo- and radiation chemistry of polymers.
Download or read book Fluorescence Depolarization Studies on Polymeric Systems written by John Davison Hostettler and published by . This book was released on 1970 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temperature Responsive Polymers written by Vitaliy V. Khutoryanskiy and published by John Wiley & Sons. This book was released on 2018-05-31 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative resource that offers an understanding of the chemistry, properties and applications of temperature-responsive polymers With contributions from a distinguished panel of experts, Temperature-Responsive Polymers puts the focus on hydrophilic polymers capable of changing their physicochemical properties in response to changes in environmental temperature. The contributors review the chemistry of these systems, and discuss a variety of synthetic approaches for preparation of temperature-responsive polymers, physicochemical methods of their characterisation and potential applications in biomedical areas. The text reviews a wide-variety of topics including: The characterisation of temperature-responsive polymers; Infrared and Raman spectroscopy; Applications of temperature-responsive polymers grafted onto solid core nanoparticles; and much more. The contributors also explore how temperature-responsive polymers can be used in the biomedical field for applications such as tissue engineering. This important resource: Offers an important synthesis of the current research on temperature-responsive polymers Covers the chemistry, the synthetic approaches for presentation and the physiochemical method of temperature-responsive polymers Includes a review of the fundamental characteristics of temperature-responsive polymers Explores many of the potential applications in biomedical science, including drug delivery and gene therapy Written for polymer scientists in both academia and industry as well as postgraduate students working in the area of stimuli-responsive materials, this vital text offers an exploration of the chemistry, properties and current applications of temperature-responsive polymers.
Download or read book Fluorescence Spectroscopic Studies of DNA Dynamics written by and published by . This book was released on 1987 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Random solvent induced motions of DNA are manifest as nanosecond torsional oscillations of the helix backbone, nanosecond through millisecond bending deformations and overall rotational and translational diffusion of the polymer. Fluorescence spectroscopy is used to study this spectrum of DNA motions while ethidium monoazide was covalently bounded. The steady state fluorescence depolarization data indicate that the covalent monoazide/DNA complex exhibits internal motions characterized by an average angular amplitude of 26 degrees confirming reports of fast torsional oscillations in noncovalent ethidium bromide/DNA systems. Data obtained by use of a new polarized photobleaching recovery technique (FPR) reflect both the rotational dynamics of the polymer and the reversible photochemistry of the dye. To isolate the reorientational motion of the DNA, the FPR experiments were ran in two modes that differ only in the polarization of the bleaching light. A quotient function constructed from the data obtained in these two modes monitors only the rotational component of the FPR recovery. In specific applications those bending deformations of long DNA molecules that have characteristic relaxation times on the order of 100 microseconds have been resolved. A fluorescence correlation technique that relates fluctuations in particle number to center-of-mass motion was used to measure translational diffusion on coefficients of the plasmid PBR322 and a short oligomeric DNA. A theory that describes angular correlation in systems exhibiting cyclic, biologically directed reorientation and random Brownian rotation is developed.
Download or read book Scientific Bulletin written by and published by . This book was released on 1977 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectrophotometry and Spectrofluorimetry written by Mike Gore and published by OUP Oxford. This book was released on 2000-05-04 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectrophotometry and Spectrofluorimetry: A Practical Approach Second Edition was written with the intention to help the reader understand the background concepts and practical applications of spectrophotometry and spectrofluorimetry. Optical spectroscopy underpins the day to day operations of most laboratories in the chemical, biological and medical sciences and this edition contains substantially updated and new chapters addressing the principles of most of the more common applications such as: spectrophotometry, spectrophotometric assays, spectrofluorimetry, time resolved fluorescence and phosphorescence studies, circular dichrosim and pre-equilibrium spectroscopic techniques. In all chapters, the emphasis is placed upon the practical aspects, with protocols to guide readers through test experiments. Other chapters are included to introduce subjects that have traditionally depended upon spectroscopy such as basic enzyme kinetics, ligand binding, data handling and the more recently established interest in the study of protein and DNA stability. Finally, the concept of 'global analysis' is introduced to provide the reader with an insight into this method of utilizing the vast arrays of experimental data provided by current instrumentation.
Download or read book Molecular Photonics written by Kazuyuki Horie and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: New organic compounds with interesting and improved electronic and photonic properties are being reported on a daily basis, with new light-triggered materials being designed for molecular and bioelectronic devices. The relatively new concept of molecular photonics embraces photochemistry and photophysics, dealing with light-induced changes in materials and their electronic states as well as the field of optics. This volume begins with a background and survey of current light-related research fields, moving on to the fundamentals of molecular photonics. Subsequent chapters deal with the characteristics of photochemical reaction and typical processes of photophysical chemistry, while the last two chapters focus on the study of materials-induced changes in light. The most important concepts are summarized in overview tables to promote active understanding of new topics. .
Download or read book Photophysics of Polymers written by Charles E. Hoyle and published by . This book was released on 1987 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides scientists engaged in basic and applied polymer research with a clear understanding of the current status of polymer photophysics. Offers topics ranging from luminescence decay analysis of biologically important polymers to investigation of electronic energy relaxation in the synthesis of aromatic vinyl polymers using picosecond fluorescence spectroscopy. Provides discussions on energy migration in polymer films and solutions, as well as fluorescent conformational probes of polymers in solution, dye labeling techniques, kinetic spectroscopy, excitation migration, triplet antenna effect, and more.
Download or read book Photochemistry written by D.. Bryce-Smith and published by Royal Society of Chemistry. This book was released on 1972 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conformational Analysis of Molecules in Excited States written by Jacek Waluk and published by John Wiley & Sons. This book was released on 2000-06-13 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique look at some of the hottest topics in photophysics and photochemistry today The study of molecules in excited states has exploded over the past decade, providing new insights into conformational changes in organic molecules and opening up research opportunities for scientists and professionals in chemistry, physics, biology, medicine, and materials engineering. Using conformational analysis as a unifying concept, this important new work provides readers with a cohesive and cutting-edge overview of this fascinating and challenging field. From conformational changes accompanying photoinduced electron transfer to elementary photophysical and photochemical processes in living systems, the most representative and challenging topics are carefully gleaned from the vast literature, highlighting major conceptual problems along with the relevant experimental techniques. Authoritative, detailed contributions from both experimentalists and theoreticians include coverage of: * Conformational changes in intramolecular excited state electron transfer * Conformational aspects of excited state proton transfer * The novel topic of solute-solvent friction in chemical reactions * Mechanisms and structural aspects of exciplex formations * Conformational aspects of organic photochemistry * Calculations of excited state conformational properties
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Structure and Dynamics of Molecular Systems written by R. Daudel and published by Springer Science & Business Media. This book was released on 1986-05-31 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the second of a set of two which contain 28 selected from the l. j. O invited lectures given at the internatim;al seminar of the same title held at the Centre de Mecanique Ondulatoire Appliquee du Centre National de la Recherche Scientifique in Paris (France) from October 1983 to May 1985. They are intended to provide a survey of topics of current interest relative to the structure and the dynamics of molecular systems. The papers have been selected on the basis of their relevance to the following four topics: i) molecular conformations and transformations; H) molecular relaxation and motion; iii) charge, spin and momentum distributions and intermolecular interactions; iv) collective phenomena in condensed matter. The first volume deals mostly with the first two topics, the second volume mostly with the last two. The two volumes consist of an approximately equal number of self-con tained, reference contributions covering recent achievements in active branches of molecular physics and physical chemistry. The first two papers of the present volume deal with theoretical aspects of intermolecular interactions: the first paper with the physical origin of the so-called non-exchange molecular terms, a complete deriva tion of which is given using Rayleigh-Schrodinger second-order perturba tion theory; the second paper with the symmetry analysis of the effects of interactions between rigid molecules and crystal environments, using the isodynamic-group theoretical approach devised by Altmann for non rigid systems.
