Sequential double click reactions: a highly efficient post-functionalization method for optoelectronic polymers

Abstract

A new post-functionalization method based on the Huisgen's 1,3-dipolar cycloaddition between azides and alkynes, followed by the atom-economic addition reaction between electron-rich alkynes and tetracyanoethylene (TCNE) was developed to introduce the donor–acceptor chromophores into polystyrene derivatives in remarkably high yields.