KFU. Card publication. On the theory of proton solid echo in polymer melts

KAZAN
FEDERAL UNIVERSITY

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ON THE THEORY OF PROTON SOLID ECHO IN POLYMER MELTS

Form of presentation

Articles in international journals and collections

Year of publication

2015

Язык

русский

Authors, employees of KFU

Fatkullin Nail Fidaievich, author

Other authors

A. Lozovoi, C. Mattea, S. Stapf S.Stapf ., author

Authors, postgraduates KFU

Lozovoy Artur Rudolfovich, postgraduate kfu

Bibliographic description in the original language

N. Fatkullin, A. Lozovoi, C. Mattea, S. Stapf, On the theory of proton solid echo in polymer melts, arXiv preprint arXiv:1508.06487

Annotation

Based on a modified Anderson-Weiss approximation (N. Fatkullin, A. Gubaidullin, C. Mattea, S.Stapf, J. Chem. Phys. 137 (2012), 224907) an improved theory of proton spin solid echo in polymer melts is formulated, taking into account contribution from intermolecular magnetic dipole-dipole interactions. The solid echo build-up function defined by the relation , where , and are the respective signals arising from ( ),( ) and ( ) spin echo experiments, where is an operator rotating the spin system on the angle relatively axis , is investigated. It is shown that the intermolecular part of this function at short times , where is a characteristic time for flip-flop transitions between proton spins, contains information about the relative mean squared displacements of polymer segments at different macromolecules, opening up a new opportunity for obtaining information about polymer dynamics in the millisecond regime.

Keywords

NMR, polymer melts, dynamics, solid echo

The name of the journal

J CHEM PHYS

URL

http://http://arxiv.org/abs/1508.06487

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=111641&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Fatkullin Nail Fidaievich	ru_RU
dc.contributor.author	A. Lozovoi, C. Mattea, S. Stapf S.Stapf .	ru_RU
dc.contributor.author	Lozovoy Artur Rudolfovich	ru_RU
dc.date.accessioned	2015-01-01T00:00:00Z	ru_RU
dc.date.available	2015-01-01T00:00:00Z	ru_RU
dc.date.issued	2015	ru_RU
dc.identifier.citation	N. Fatkullin, A. Lozovoi, C. Mattea, S. Stapf, On the theory of proton solid echo in polymer melts, arXiv preprint arXiv:1508.06487	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=111641&p_lang=2	ru_RU
dc.description.abstract	J CHEM PHYS	ru_RU
dc.description.abstract	Based on a modified Anderson-Weiss approximation (N. Fatkullin, A. Gubaidullin, C. Mattea, S.Stapf, J. Chem. Phys. 137 (2012), 224907) an improved theory of proton spin solid echo in polymer melts is formulated, taking into account contribution from intermolecular magnetic dipole-dipole interactions. The solid echo build-up function defined by the relation , where , and are the respective signals arising from ( ),( ) and ( ) spin echo experiments, where is an operator rotating the spin system on the angle relatively axis , is investigated. It is shown that the intermolecular part of this function at short times , where is a characteristic time for flip-flop transitions between proton spins, contains information about the relative mean squared displacements of polymer segments at different macromolecules, opening up a new opportunity for obtaining information about polymer dynamics in the millisecond regime.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	NMR	ru_RU
dc.subject	polymer melts	ru_RU
dc.subject	dynamics	ru_RU
dc.subject	solid echo	ru_RU
dc.title	On the theory of proton solid echo in polymer melts	ru_RU
dc.type	Articles in international journals and collections	ru_RU