Role of Interface Structure and Chain Dynamics on the Diverging Glass Transition Behavior of SSBR-SiO₂-PIL Elastomers.

ABSTRACT: Intermolecular interactions between the constituents of a polymer nanocomposite at the polymer-particle interface strongly affect the segmental mobility of polymer chains, correlated with their glass transition behavior, and are responsible for the improved dynamical viscoelastic properties. In this work, we emphasized on the evolution of characteristic interfaces and their dynamics in silica (SiO₂ NP)-reinforced, solution-polymerized, styrene butadiene rubber (SSBR) composites, whose relative prevalence varied with the phosphonium ionic liquid (PIL) volume fraction, used as an interfacial modifier. The molecular origins of such interfaces were examined through systematic dielectric spectroscopy, molecular dynamics (MD) simulations, and dynamic-mechanical analyses. The PIL facil

SUBMITTER: Sattar MA 

PROVIDER: S-EPMC7450647 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature