Controlled Synthesis of Fully π-Conjugated Donor-Acceptor Block Copolymers Using a Ni(II) Diimine Catalyst

ACS Macro Lett. 2014 Jul 15;3(7):671-674. doi: 10.1021/mz500314p. Epub 2014 Jun 25.

Abstract

We use a Ni(II) diimine catalyst to prepare the first examples of the controlled synthesis of electron-rich/electron-deficient all-conjugated diblock copolymers. These catalysts are able to control polymerizations of both electron-rich and electron-deficient monomers, which we attribute to strong association to both monomer types. Block copolymers are prepared by controlled chain extension, and their structure is verified by gel permeation chromatography, 1H NMR, electrochemistry, calorimetry, and atomic force microscopy.