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Determination of orientational anisotropy in glassy solids by 2D dipolar spectra with sample flipping

Determination of orientational anisotropy in glassy solids by 2D dipolar spectra with sample flipping
Determination of orientational anisotropy in glassy solids by 2D dipolar spectra with sample flipping
A method is proposed for the quantitative measurement of orientational anisotropy in glassy solids based on 2D dipolar NMR spectra with sample flipping (dipolar DECODER experiment). Purely dipolar spectra are obtained by chemical shift refocusing by a multiple pulse sequence. The experiment is applied to an investigation of a doubly13C-labeled sample of bisphenol-A polycarbonate deformed in a channel-die apparatus. The orientational distribution function is determined by an expansion of the distribution in terms of spherical harmonics up to degree four.
217-227
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Eisenegger, J.
e76c2893-b5a2-4e4f-b767-7a4214c25448
Suter, Ulrich W.
bdda87be-157c-4a45-83ea-df448e2225c0
Ernst, Richard R.
802b5313-21b5-4c4b-99f8-591bcbbee037
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Eisenegger, J.
e76c2893-b5a2-4e4f-b767-7a4214c25448
Suter, Ulrich W.
bdda87be-157c-4a45-83ea-df448e2225c0
Ernst, Richard R.
802b5313-21b5-4c4b-99f8-591bcbbee037

Utz, Marcel, Eisenegger, J., Suter, Ulrich W. and Ernst, Richard R. (1997) Determination of orientational anisotropy in glassy solids by 2D dipolar spectra with sample flipping. Journal of Magnetic Resonance, 128 (2), 217-227. (doi:10.1006/jmre.1997.1222).

Record type: Article

Abstract

A method is proposed for the quantitative measurement of orientational anisotropy in glassy solids based on 2D dipolar NMR spectra with sample flipping (dipolar DECODER experiment). Purely dipolar spectra are obtained by chemical shift refocusing by a multiple pulse sequence. The experiment is applied to an investigation of a doubly13C-labeled sample of bisphenol-A polycarbonate deformed in a channel-die apparatus. The orientational distribution function is determined by an expansion of the distribution in terms of spherical harmonics up to degree four.

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Published date: October 1997
Organisations: Chemistry, Faculty of Natural and Environmental Sciences, Magnetic Resonance
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Identifiers

Local EPrints ID: 355601
URI: http://eprints.soton.ac.uk/id/eprint/355601
DOI: doi:10.1006/jmre.1997.1222
PURE UUID: f8970926-da31-4d1f-bf23-36c530a8f705
ORCID for Marcel Utz: ORCID iD orcid.org/0000-0003-2274-9672

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Date deposited: 21 Nov 2013 14:38
Last modified: 15 Mar 2024 03:44

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Contributors

Author: Marcel Utz ORCID iD
Author: J. Eisenegger
Author: Ulrich W. Suter
Author: Richard R. Ernst

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