Wideline1HFIDandrelaxationmeasurementsofarelativelysimplemotionallyheterogeneoussystem,thetriblockcopolymer styrene–butadiene–styrene, have been performed in a temperature range between the polystyrene and polybutadiene glass transition temperatures.ThetwoFIDandthetwospinlatticerelaxationtimeintherotatingframe(T1r)componentsfoundateach 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 T1r data, to be revealed. In the case examined, the correlation found could be confirmed by high-resolution 1H T1r-selective 13C Cross Polarization experiments.
Correlation between H-1 FID and T-1p components in heterogeneous polymer systems: an application to SBS
GEPPI, MARCO;VERACINI, CARLO ALBERTO
2005-01-01
Abstract
Wideline1HFIDandrelaxationmeasurementsofarelativelysimplemotionallyheterogeneoussystem,thetriblockcopolymer styrene–butadiene–styrene, have been performed in a temperature range between the polystyrene and polybutadiene glass transition temperatures.ThetwoFIDandthetwospinlatticerelaxationtimeintherotatingframe(T1r)componentsfoundateach 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 T1r data, to be revealed. In the case examined, the correlation found could be confirmed by high-resolution 1H T1r-selective 13C Cross Polarization experiments.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
