Entropion
发表于 2025-3-25 04:23:18
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blight
发表于 2025-3-25 09:11:49
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有权威
发表于 2025-3-25 13:43:45
Absorption Spectroscopy in the Ultraviolet and Visible Regionse due to transitions from the energetically highest VB to the lowest CB. Unfortunately, the interpretation of the spectra is not always straightforward because of the pseudo-ID-band nature of polymers, i.e. their intermediate position with regard to electronic structure between true (3D) solids and molecules (see also Figs. 2.9., 2.10, and 2.12).
Tremor
发表于 2025-3-25 15:49:08
Nuclear Magnetic Resonance (NMR) Spectroscopy of Polymers8, the main reason for this behaviour is the weakness of nuclear magnetic moments. Table 10.1 shows a list of nuclei frequently encountered in polymers together with their natural abundance and relative sensitivity of detection. The nuclear spin moment is given in Table 10.1 in units of ..
整洁漂亮
发表于 2025-3-25 21:51:43
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bronchiole
发表于 2025-3-26 01:33:41
Principles of Spin-Resonance Spectroscopyctra of polymers (the rotations typical of this spectral regions are irrelevant to macromolecules) which are due to slow movements of the polymer chains or parts of it. These non-resonance spectra, however, have been excluded from the scope of this book (see Part A).
Debate
发表于 2025-3-26 08:05:34
Book 1984Lausanne, 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 completenes
Mettle
发表于 2025-3-26 12:23:31
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字的误用
发表于 2025-3-26 12:38:44
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Notorious
发表于 2025-3-26 19:51:14
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