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发表于 2025-3-26 22:01:18
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发表于 2025-3-27 04:06:18
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发表于 2025-3-27 08:59:52
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发表于 2025-3-27 10:54:59
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无能力
发表于 2025-3-27 17:35:17
Liquid state NMR studies of polymer dynamics and conformation,available from spin-spin (.) couplings. This is because the size of three-bond and longer range spin-spin couplings depends on the dihedral angles between the bonds to the nuclei under observation. NOEs between vicial protons depend on local dihedral angles in a similar way.
SIT
发表于 2025-3-27 21:06:43
rate attempt to pull together the numerous strands of the subject in a single comprehensive volume, designed to be readable at every scientific level. It is intended that the book will be of use to the vast majority of polymer scientists and NMR spec troscopists alike. Readers new to NMR will find
LATE
发表于 2025-3-28 01:36:44
High resolution solid-state NMR studies of polymer chemical and physical structures,d 4). Even rubbery, crosslinked polymers, which are completely prevented from flowing by their three-dimensional network structures, produce high-resolution spectra under these same conditions. These observations are the direct consequence of rapid, isotropic motions of the polymer segments.
CEDE
发表于 2025-3-28 05:23:32
Solution-state NMR determination of polymer end-groups, substituents and minor structures, be able to correlate the properties of polymeric materials with their structures and the methods of preparation, but also to understand all the reactions involved in a polymerization. With sufficient knowledge, it may be possible to select conditions for polymerization so that undesirable groupings can be reduced in number or even eliminated.
deciduous
发表于 2025-3-28 07:10:47
Book 1993pt to pull together the numerous strands of the subject in a single comprehensive volume, designed to be readable at every scientific level. It is intended that the book will be of use to the vast majority of polymer scientists and NMR spec troscopists alike. Readers new to NMR will find extensive
掺假
发表于 2025-3-28 12:41:21
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