N-Heterocyclic Carbene Catalyzed Transesterification of Polytrifluoroethyl Acrylates

Abstract

This article describes N-heterocyclic carbene catalyzed transesterification of polytrifluoroethyl acrylates which are readily prepared by nitroxide-mediated radical polymerization using a sterically hindered alkoxyamine as an initiator/regulator. Controlled radical polymerization provides polytrifluoroethyl acrylates with molecular weights (M_n) ranging from 1600 to 17200 g/mol and low molecular weight distributions (polydispersity index, PDI = 1.1–1.2). The polytrifluoroethyl acrylates are readily transesterified with various alcohols in the presence of an NHC catalyst.

Key words

nitroxide-mediated radical polymerization - N-heterocyclic carbenes - esterification - polyacrylates - polymer analogous reaction

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