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Polymerization of Alkyl Diazoacetates Initiated with Pd Complexes
Author(s) -
Ihara Eiji,
Itoh Tomomichi,
Shimomoto Hiroaki
Publication year - 2015
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201400007
Subject(s) - carbene , polymerization , alkyl , substituent , polymer , carbon chain , yield (engineering) , carbon fibers , polymer chemistry , chain transfer , boron , chain (unit) , chemistry , materials science , organic chemistry , catalysis , radical polymerization , composite number , physics , composite material , astronomy , metallurgy
Summary Pd‐initiated polymerization of alkyl diazoacetates as an effective methodology to prepare carbon‐carbon (CC) main chain polymers bearing a substituent on every main chain carbon is described. (NHC)Pd/borate (NHC = N ‐heterocyclic carbene) systems are efficient at affording high M n polymers. π‐AllylPdCl‐based systems can initiate the polymerization with the number of polymer chain per Pd ratios over 1.0 because of occurrence of chain transfer, capable of affording relatively low M n polymers in high yield. Initiation and termination mechanisms have been proposed for the latter initiating systems, based on the detailed MALDI‐TOF‐MS analyses of the low M n products.