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Titlebook: Introduction to Polymer Spectroscopy; Walter Kl?pffer Book 1984 Springer-Verlag Berlin Heidelberg 1984 Polymer.Spectroscopy.Spektroskopie.

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發(fā)表于 2025-3-21 16:37:02 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Introduction to Polymer Spectroscopy
編輯Walter Kl?pffer
視頻videohttp://file.papertrans.cn/475/474048/474048.mp4
叢書名稱Polymers - Properties and Applications
圖書封面Titlebook: Introduction to Polymer Spectroscopy;  Walter Kl?pffer Book 1984 Springer-Verlag Berlin Heidelberg 1984 Polymer.Spectroscopy.Spektroskopie.
描述This book has grown out of several courses oflectures held at the University of Mainz in the years 1978 to 1981, at the Ecole Poly technique Federal, Lausanne, and at the University of Fribourg, Switzerland. The last two courses were held in the framework of the "3e Cycle" lectures in June 1981. According to this genesis, the emphasis of the book lies on a unified and concise approach to introducing polymer spectroscopy rather than on completeness which, by the way, could hardly be achieved in a single volume. In contrast to other books on this subject, equal weight is given to electronic spectroscopy, vibrational spectroscopy and spin resonance techniques. The electronic properties of polymers have been increasingly investigated in the last ten years; until recently, however, these studies and the spectroscopic methods applied have not generally been considered as part of polymer spectroscopy. The increasing use of electronic spectroscopy by polymer researchers, on the other hand, shows that this type of spectroscopy provides efficient tools for gaining insight into the properties of polymers which cannot be obtained by any other means.
出版日期Book 1984
關鍵詞Polymer; Spectroscopy; Spektroskopie; Tacticity; molecule; particles; scattering; spectra
版次1
doihttps://doi.org/10.1007/978-3-642-69373-1
isbn_softcover978-3-642-69375-5
isbn_ebook978-3-642-69373-1Series ISSN 0171-7901
issn_series 0171-7901
copyrightSpringer-Verlag Berlin Heidelberg 1984
The information of publication is updating

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沙發(fā)
發(fā)表于 2025-3-21 23:33:36 | 只看該作者
ESCA in Polymer Spectroscopyis used in order to detach electrons from the sample, the kinetic energy of the electrons being measured by means of an electron analyser. The difference in energy between the exciting photons of frequency . and the electrons detached (..) is equal to the binding energy of the electron.
板凳
發(fā)表于 2025-3-22 03:55:12 | 只看該作者
Absorption Spectroscopy in the Ultraviolet and Visible Regionsd in vacuum and since the laboratory radiation sources are weak. Only very few solvents are transparent in the fUV. Polymers therefore have to be measured in the form of thin films and mostly show intense, structureless absorption bands (1–4) which become narrower and partly structured at low temper
地板
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Principles of Spin-Resonance Spectroscopydue to true resonance absorption or emission of electromagnetic radiation, albeit under the additional action of external (laboratory) or internal (molecular) magnetic fields. Continuing the nonmagnetic absorption spectroscopy beyond the fIR into the microwave region would lead to the relaxation spe
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發(fā)表于 2025-3-22 18:20:30 | 只看該作者
Electron-Spin-Resonance (ESR) Spectroscopy of Polymersised by an angular momentum, the “spin”, which is connected with a magnetic moment (Chap. 8). This magnetic moment is influenced by external magnetic fields in such a way that two orientations of different energy are formed [Eq. (9.1) and Fig. 9.1].
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發(fā)表于 2025-3-23 00:11:25 | 只看該作者
Nuclear Magnetic Resonance (NMR) Spectroscopy of Polymersuency is therefore much smaller and can be found in the range of radio frequencies (corresponding to wavelengths of 1 to 10m).. As discussed in Chap. 8, the main reason for this behaviour is the weakness of nuclear magnetic moments. Table 10.1 shows a list of nuclei frequently encountered in polymer
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