Structurally diverse polymers from norbornene and thiolactone containing building blocks

Conjugated polymers containing 2,3-dialkoxybenzene and iptycene building blocks.

[structure: see text]. New poly(phenylene ethynylene)s (PPEs) and poly(phenylene vinylene)s (PPVs) that are highly emissive in solution and thin films were prepared utilizing palladium-catalyzed cross-coupling between new 1,4-diiodo-2,3-dialkoxybenzene- and iptycene-containing monomers. The absorption and emission spectra of the resulting polymers consistently showed a significant blue shift re...

Oligomers and Polymers Based on Pentacene Building Blocks

Functionalized pentacene derivatives continue to provide unique materials for organic semiconductor applications. Although oligomers and polymers based on pentacene building blocks remain quite rare, recent synthetic achievements have provided a number of examples with varied structural motifs. This review highlights recent work in this area and, when possible, contrasts the properties of defin...

End–Functionalized Polymers: Versatile Building Blocks for Soft Materials

We present a concise review of telechelic polymers of various architectures, focusing on the structure, solute solvent interactions, aggregation processes, equilibrium and dynamical properties and applications. Telechelics are macromolecules with functionalized, mutually attractive endgroups, which assume a variety of conformations that depend on solvent quality, salinity and pH of the solvent,...

Dynamic motion of building blocks in porous coordination polymers.

Building Random Trees from Blocks

Many modern networks grow from blocks. We study the probabilistic behavior of parameters of a blocks tree, which models several kinds of networks. It grows from building blocks that are themselves rooted trees. We investigate the number of leaves, depth of nodes, total path length, and height of such trees. We use methods from the theory of Pólya urns and martingales.