Two-dimensional platelets assembled at interfaces and dispersed in polymer matrices offer a route to a host of new materials and composites with interesting properties, such conductivity and mechanical robustness.  However, controlled assembly of the platelets is generally hindered by their tendency to aggregate, and have poor dispersability, since solubility is defined by their chemical structure.  We will report recent work from our group on the controlled covalent modification of two dimensional platelets, such as facial selectivity and edge-only functionalization as routes to control dispersability and dictate platelet assembly into higher order structures and at interfaces.  The chemistries used for these modifications are robust and scalable, allowing for the functionalization of platelets (specifically graphene oxide and molybdenum disulfide) with a variety of small molecules and polymers, giving materials of tunable solubility.

Covalent functionalization of platelets for controlled assembly

248th National Meeting (2014)

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