Algorithm for preliminary evaluation of the correlation time of local dynamics in some polymeric materials

Authors
Todica, M Simon, S Cosma, C Cozar, O Matei, E
Citation
M. Todica et al., Algorithm for preliminary evaluation of the correlation time of local dynamics in some polymeric materials, TALANTA, 53(1), 2000, pp. 247-252
Citations number
12
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
TALANTA
ISSN journal
00399140 → ACNP
Volume
53
Issue
1
Year of publication
2000
Pages
247 - 252
Database
ISI
SICI code
0039-9140(20001002)53:1<247:AFPEOT>2.0.ZU;2-9
Abstract
A method for preliminary evaluation of the correlation time of local dynami cs of the polymeric chains, using the experimental nuclear magnetic resonan ce spin-lattice relaxation data, is proposed. The algorithm is based on the model of the passage of a particle over a potential energy barrier. This m ethod was utilized for some molten polymers and concentrated polymeric solu tions. (C) 2000 Elsevier Science B.V. All rights reserved.