SPACE-RESOLVED LOW-FREQUENCY DYNAMICS IN ENTANGLED POLYMERS

Authors
GARGARO A DELUCA F DEVITA E RAZA GH MARAVIGLIA B
Citation
A. Gargaro et al., SPACE-RESOLVED LOW-FREQUENCY DYNAMICS IN ENTANGLED POLYMERS, Colloids and surfaces. A, Physicochemical and engineering aspects, 140(1-3), 1998, pp. 321-324
Citations number
21
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
140
Issue
1-3
Year of publication
1998
Pages
321 - 324
Database
ISI
SICI code
0927-7757(1998)140:1-3<321:SLDIEP>2.0.ZU;2-6
Abstract
A T-1 rho filter for the NMR imaging of solid polymers is presented. T -1 rho is the relaxation time in the rotating frame, which is sensitiv e to the molecular motion and whose spectral density falls in the rang e of slow dynamics, namely motion characterized by correlation times r anging between 10(-2) and 10(-5) s. The method allows one to obtain a good spatial resolution without the need of strong geld gradients and without the effects related to the spatial encoding manipulation of th e spin system. (C) 1998 Elsevier Science B.V. All rights reserved.