Aqueous Palladium-Catalyzed Direct Arylation Polymerization of 2-Bromothiophene Derivatives
Journal
Macromolecular Rapid Communications
Journal Volume
41
Journal Issue
9
Date Issued
2020
Author(s)
Abstract
is utilized in the DArP of T1 to afford PT1 without ligand contamination. Density functional theory calculations to determine the coordinating capability of the carboxylate/pivalic acid/water to palladium indicate the viability of implementing DArP in water. Finally, polyelectrolyte molecular-weight overestimation by GPC in water is attributed to the polyelectrolyte effect. Aggregation of the conjugated polyelectrolytes leads to a contracted hydrodynamic volume, and the molecular weight and dispersity assessed by GPC in DMAc significantly deviate from the actual values. An objective approach to evaluate the molecular weight for conjugated polyelectrolytes requires further development.
Type
journal article