Abstract
In this work, the relation between the morphological structure and the linear viscoelasticity of graphene oxide (GO)-based polystyrene nanocomposites below percolation threshold was investigated. The rheological properties were observed to change upon addition of GO-2D particles at filler content below mechanical percolation threshold (0.06–0.3 %vol). In particular, the nanocomposite systems showed a delayed long-range relaxation dynamic regardless particle concentration, when compared to the neat polystyrene matrix. Moreover, little shift with regard to higher relaxation times of the full relaxation spectra of PS-GO nanocomposite was observed. This is attributed to the presence of attractive-kind interfacial interaction between polymer chains and GO-2D particles via π-π binding of benzyl rings, which strongly depends on GO sheets dispersion and exfoliation state. In light of these observations, oscillatory shear rheology measurements were used as an indirect tool to establish how exfoliated GO-2D particles were homogeneously dispersed in a low-polar polymer matrix.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
