Nechanistic Aspects of Atom Transfer Radical Polymerization

摘要

Typical conditions and experimetnal results of Atom Transfer Radical Polymerization (ATRP) of styrene, (meth) acrylates, acrylonitrile and other monomers are reviewed which include polymerization rate,s evolution of molecular weights and polydispersities with conversion. The role of all major components of ATRP is discussed which comprises the structure of various alkyl halides, metals, ligands, solvents, additives as well as reaction times and temperature.s Enhancement of the initiation efficiency by some special procedures such as slow addition of initiator or catalyst is described. Origins and contributions of side reactions such as bimolecular termination, electron transfer and #beta#-H elimination are discussed.