Constructing a hierarchy of pores spanning from micro- (< 2 nm) and meso- (2 - 50 nm) to macroporous (> 50 nm) length scales allows us to synergistically combine large surface area with fast material transport.

Nanoporous polymers have promising applications such as filtration, separation, storage, and catalysis. Block polymer self-assembly provides a powerful route to well-defined nanoporous polymers with extraordinary control over pore size, structure, and functionality. We are exploring synthesis of block polymer-based nanoporous polymers and control of transport through nanopores by size for energy and catalytic applications.