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Can I read Methyl groups as local probes for polymer dynamics as investigated by 1H double-quantum magic-angle spinning NMR spectroscopy on EtoBox?
Methyl groups as local probes for polymer dynamics as investigated by 1H double-quantum magic-angle spinning NMR spectroscopy by Kay Saalwächter is a Physics and Astronomy article available to read on EtoBox.
What is Methyl groups as local probes for polymer dynamics as investigated by 1H double-quantum magic-angle spinning NMR spectroscopy about?
We illustrate the application of high-resolution homonuclear 1 H double-quantum magic-angle spinning solid-state NMR recoupling experiments for an efficient measurement of segmental order parameters for polymers with methyl groups. A theoretical treatment of the spin dynamics of methyl groups during a corresponding pulse sequence including experimental imperfections is given. The applicability of the analytical result for the extraction of dipole-dipole coupling constants from experimental data is illustrated for a model substance. Experiments on entangled polymer melts indicate that double-quantum spectroscopy on methyl groups is well-suited for the extraction of very weak coupling constants, which permit the calculation of well-defined order parameters.
Who reads Methyl groups as local probes for polymer dynamics as investigated by 1H double-quantum magic-angle spinning NMR spectroscopy?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- Kay Saalwächter
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0009-2614)
- Published
- 2002
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)