New publication in Angew. Chem.

We have a new paper out in Angew. Chem.! Chamoni, Corvo, and Will report on how network architecture affects the properties of polymer materials with temporary crosslinks generated by carbodiimides. Materials that generate interpenetrated networks on treatment with the carbodiimide show remarkable increases in their fracture energies (resistance to fractures).

New paper in Macromol. Rapid Commun.

We have a new paper out in Macromol. Rapid Commun.! In this work, a collaboration with the Konkolewicz group, Kate and Viraj, with help from Emma Gordon from Miami’s microscopy facility, report on the properties of star polymers with ortho-phenylene cores. The o-phenylenes retain their well-folded (helical) state when functionalized with many different acrylate polymers.

New paper in J. Am. Chem. Soc.

We have a new paper out in J. Am. Chem. Soc.! In this work, Chamoni, Corvo, and co-workers explore polymer network hydrogels that can be temporarily mechanically reinforced on treatment with a carbodiimide through the formation of anhydride cross-links. Because these materials undergo gel–gel transitions, they exhibit new and unusual behavior. For example, two pieces can be temporarily and repeatedly adhered, with the time of adhesion dependent on the amount of carbodiimide used. Films can also be reversibly patterned with different mechanical properties. This work is part of our long-running collaboration with the Konkolewicz group.

New paper in J. Org. Chem.

We have another new paper out in J. Org. Chem.! In this work, Govinda and Will study the effect of different amides installed at the ends of ortho-phenylene oligomers on the conformation. The behavior can be quite complicated, with the amides affecting multiple degrees of freedom along the oligomers. This can be resolved using our recently developed 19F labeling strategy.

New paper in J. Org. Chem.

We have a new paper out in J. Org. Chem.! Suma, Juliana, and Gopi show that it is possible to control the twist sense of o-phenylenes by including chiral phthalimides in the middle of the oligomer. Importantly, it is necessary to include substituents farther along the helix to interact with the chiral groups; otherwise, chiral induction is very poor.