Chain orientation and dynamics of filled and unfilled poly(butadiene) networks studied by applying nuclear spin correlation of residual quadrupolar interaction

Abstract

Strength and fluctuation of nuclear quadrupolar interaction of filled, partially deuterated cis-1,4 poly(butadiene) networks under deformation are studied by implementing, for the first time, a new NMR method based on nuclear spin correlation of residual dipolar/quadrupolar interactions, demonstrated by Callaghan et. al. [1]. It is shown that this method can probe different dynamics and orientation of polymer chains in filled systems and the results are in good agreement with that reported in literature [17] for the same system but using another NMR methods. Furthermore, the effect of temperature on the quadrupolar interaction of unfilled cis-1,4 poly(butadiene) is studied by using the same method and the results are reported.