Correlation between 1H FID and T1rho components in heterogeneous polymer systems: an application to SBS.

TitleCorrelation between 1H FID and T1rho components in heterogeneous polymer systems: an application to SBS.
Publication TypeJournal Article
Year of Publication2005
AuthorsFerrini, V, Forte, C, Geppi, M, Pizzanelli, S, Veracini, CA
JournalSolid state nuclear magnetic resonance
Volume27
Pagination215–222
Keywords1H NMR relaxation, Anionic polymerization, Block copolymers, FID analysis, Functions, Glass transition, Heterogeneous polymer, Heterogeneous polymers, Magnetization, Polybutadienes, Polypropylenes, Polystyrenes, SBS, Styrene-butadiene-styrene (SBS), T1$\rho$ relaxation
Abstract

Wideline 1H FID and relaxation measurements of a relatively simple motionally heterogeneous system, the triblock copolymer styrene-butadiene-styrene, have been performed in a temperature range between the polystyrene and polybutadiene glass transition temperatures. The two FID and the two spin lattice relaxation time in the rotating frame (T1rho) components found at each temperature have been correlated by means of a two-dimensional approach. It is shown that this approach allows dynamic information, not accessible simply by interpreting proton T1 and T1rho data, to be revealed. In the case examined, the correlation found could be confirmed by high-resolution 1H T1rho-selective 13C Cross Polarization experiments.

URL http://www.ncbi.nlm.nih.gov/pubmed/15799878
DOI10.1016/j.ssnmr.2004.11.005