High and Low Resolution NMR Studies of Molecular Motion in Solids PDF Download
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Author: Gary Robert Hays
Publisher:
ISBN:
Category : Nuclear magnetic resonance
Languages : en
Pages :
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Author: Gary Robert Hays
Publisher:
ISBN:
Category : Nuclear magnetic resonance
Languages : en
Pages :
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Author: John Havens
Publisher:
ISBN:
Category :
Languages : en
Pages : 300
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Author: T. Asakura
Publisher: Elsevier
ISBN: 0080541461
Category : Science
Languages : en
Pages : 1017
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Book Description
In polymer science and technology, the advanced development of various new polymer materials with excellent properties and functions is desirable. For this purpose it is necesary to determine the exact relationship between physical properties and molecular structure-dynamics with powerful techniques. One such technique is solid state NMR. Recently, high resolution NMR studies of solids have been realized by using advanced pulse and mechanical techniques, which has resulted in a variety of structural and dynamical information on polymer systems. Solid state NMR has provided characteristic information which cannot be obtained by other spectroscopic methods.This book is divided into two parts. The first part covers the principles of NMR, important NMR parameters such as chemical shifts, relaxation times, dipolar interactions, quadrupolar interactions, pulse techniques and new NMR methods. In the second part, applications of NMR to a variety of polymer systems in the solid state are described.Features of this book:• Contains an up-to-date and comprehensive account of solid state NMR of polymers by leading researchers in the field• Provides a compilation of solid state NMR of polymers, which makes it an ideal reference book for both NMR researchers and general polymer scientists.This book will be of interest to the NMR community, and will be invaluable for both the beginner and the expert.
Author: M. Mehring
Publisher: Springer Science & Business Media
ISBN: 3642963323
Category : Science
Languages : en
Pages : 257
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Manipulation and Dilution Tools for Ruling Abundant Species "NMR is dead" was the slogan heard in the late 1960s at least among physicists, until John S. Waugh and his co-workers initiated a series of new NMR experiments, which employed the coherent modulation of interactions by strong radiofrequency fields. A wealth of new phenomena was observed, which are summarized in the introduction for the convenience of the unbiased reader, whereas Section 2 collects the basic spin interactions observed in solids. Line-narrowing effects in dipolar coupled solids by the application of multiple pulse experiments are extensively discussed in Section 3. Numerous extensions of the basic Waugh, Huber, and Haeberlen experiment have been developed by different groups and have been applied to the nuclei IH, 9Be, 19F, 27Al, 31p, 63CU in solids. Application of this technique to a variety of systems is still in progress and should reveal interesting insights into weak spin interactions in solids. It was soon realized that rare spins could be used as monitors for molecular fields in the solid state; however, rare spin observation is difficult because of the small signal-to-noise ratio. Pines, Gibby, and Waugh introduced a new concept of cross-polarization, based on ideas of Hahn and co-workers, which allows the detection ofrare spins with increased sensitivity. The dynamics involved are treated in detail. Other sections merely list results obtained by the techniques described and demonstrate their usefulness in the investigation of dynamical problems in molec ular and solid state physics.
Author: Paul Patrick Davis
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Bernhard Blümich
Publisher: Springer Science & Business Media
ISBN: 3642612237
Category : Science
Languages : en
Pages : 218
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Solid-State NMR is a branch of Nuclear Magnetic Resonance which is presently experiencing a phase of strongly increasing popularity. The most striking evidence is the large number of contributions from Solid-State Resonance atNMR meetings, approaching that ofliquid state resonance. Important progress can be observed in three areas: Methodological developments, applications to inorganic matter, and applications to organic matter. These developments are intented to be captured in three volumes in this series, each of them being devoted to more or less one of these areas. The present volume on Solid-State NMR III is devoted mainly to organic matter. The recent developments of deuteron NMR and their applications are reviewed in the first chapter. Crosspolarization, MAS, and dynamic angle spinning are being explored for enhancement of information and sensitivity. In addition to the analysis of classical relaxation times and modern 2D spectra, detailed dynamic information becomes accessible from investigations of the relaxation time anisotropies. The second chapter examines cross-polarization in static and rotating solids under conditions of spin diffusion and thermal motion. The underlying dipole-dipole interaction is further exploited by the techniques described in the third chapter for studies of polymer-polymer miscibility. Short range techniques are discriminated from long-range techniques based on spin diffusion. The use ofthese techniques is illustrated by a case study ofPMMAJPVF blends. The last chapter addresses novel z methods and applications of two-dimensional exchange NMR for investigations of relative molecular orientations, polymer morphology, molecular dynamics, and macroscopic molecular order.
Author: Lieven Gerven
Publisher: Springer Science & Business Media
ISBN: 146842808X
Category : Science
Languages : en
Pages : 433
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Author: Philippe Colomban
Publisher: Cambridge University Press
ISBN: 9780521383172
Category : Science
Languages : en
Pages : 618
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Book Description
This book gives a comprehensive review of proton conductors, including theory, techniques, the materials themselves and applications.
Author: Ulla Lähteenmäki
Publisher:
ISBN:
Category : Astronomy
Languages : de
Pages : 16
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 145
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