Coacervate Hydrogels

Combining the power of oxyanionic polymerization and thiol-ene click chemistry, we can form hydrogels from a binary mixture of solutions containing fully watersoluble and oppositely-charged triblock copolymer precursors. The key to the physical associations in these materials...

Functional Polyethers

Polyethers, such as poly(ethylene glycol) (PEG), are widely used materials in established fields such as drug-delivery, and control of biocompatibility, and are becoming increasingly important in emerging technologies such as lithium-polymer batteries, and environmentally benign...

In order to overcome the challenge of metal contamination in traditional ATRP systems, we have been involved in developing a metal-free ATRP process, mediated by light and catalyzed by an organic-based photoredox catalyst. Polymerization of vinyl monomers are efficiently activated and...

New conjugated molecules with twisted structures have been designed and synthesized. Copolymers with these nonplanar building blocks are unique in terms of their optical and electrochemical properties. These new polymer materials have found their applications in organic electronics such as solar...

Ring-opening metathesis polymerization (ROMP) generally relies on the ring strain within an unsaturated monomer to promote and control the polymerization process. Through the invention of an enyne containing small molecule “polymerization trigger,” fast and direction polymerizations...

A facile approach to unique 3D, patterned polymer brushes is based on visible-light-mediated controlled radical polymerization. The temporal and spatial control of the polymerization allows the patterning of polymer brushes from a uniform initiating layer using a simple photomask (see picture)....

Inspired by the marine mussel’s ability to adhere to surfaces underwater, an aqueous catechol-based dip coating platform was developed. Using a catechol-functionalized polyacrylamide binder in combination with inorganic nanoparticles enables the facile fabrication of robust composite...

In a first step, elongated particles with an axially stacked lamellae structure are selectively prepared by utilizing functional surfactants to control the phase separation of symmetric polystyrene-b-poly(2-vinylpyridine)(PS-b-P2VP) in dispersed droplets. In a second step, the dynamic shape...

Coacervate Hydrogels
Functional Polyethers