Field-cycling NMR relaxometry of polymers confined to artificial tubes: Verification of the exponent 3/4 in the spin-lattice relaxation dispersion predicted by the reptation model

dc.contributor.author	Kimmich R.
dc.contributor.author	Seitter R.
dc.contributor.author	Beginn U.
dc.contributor.author	Möller M.
dc.contributor.author	Fatkullin N.
dc.date.accessioned	2018-09-17T20:11:12Z
dc.date.available	2018-09-17T20:11:12Z
dc.date.issued	1999
dc.identifier.issn	0009-2614
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/133153
dc.description.abstract	2H field-cycling NMR relaxometry was applied to deuterated linear polyethyleneoxide (PEO) of different chain lengths confined in a porous matrix of cross-linked polyhydroxyethylmethacrylate (PHEMA). The PHEMA pore diameter was of the order of 10 nm, i.e. smaller than or similar to the dimension which the PEO coils would have in the unconfined melt. The frequency and molecular weight dependences of the spin-lattice relaxation time predicted by de Gennes as T1∝M0ω3/4 on a timescale short compared with the Rouse relaxation time are well reproduced experimentally.
dc.relation.ispartofseries	Chemical Physics Letters
dc.title	Field-cycling NMR relaxometry of polymers confined to artificial tubes: Verification of the exponent 3/4 in the spin-lattice relaxation dispersion predicted by the reptation model
dc.type	Article
dc.relation.ispartofseries-issue	3-4
dc.relation.ispartofseries-volume	307
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	147
dc.source.id	SCOPUS00092614-1999-307-34-SID0001655236

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