The interaction of graphene oxide (GO) and two polymers, poly(vinyl acetate) (PVAc) and poly(vinyl pyrrolidone) (PVP) have been studied with FTIR, solid-state deuterium NMR, temperature modulated differential scanning calorimetry (TMDSC) and thermal gravimetric analysis (TGA) in order to understand the behavior of the polymer interphase. We find evidence for a moderate strength interaction between the PVAc (or PVP) and GO which results from hydrogen-bonding. This interaction leads to some the adsorbed polymer being tightly bound. The amount of the tightly-bond polymer is on the nanometer thickness scale. We will relate the properties of the interfacial regions to the enhanced properties of polymer-GO composites.

Polymer-graphene oxide interactions

ACS Spring Meeting 2021

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