Title: Developments in anionic polymerization — A critical review
Abstract: After a short introduction reviewing the different living polymerization systems described in the earlier and recent litterature and a brief discussion of the concept of living polymers and its implications, the authors turn to the survey of the recent progresses in anionic polymerization. Thus the anionic polymerization of methyl methacrylate, particularly in polar medium, and of some other methacrylic esters is reviewed. Earlier data on the anionic polymerization of styrene and its derivatives as well as some recent ones are critically and mechanistically discussed. Anionic polymerization involving bivalent cations is considered depending on whether the living polymer chain is endowed with one or two active end-groups. Controversies in the modes of association of dienes are discussed in terms of a tetramer-dimer equilibrium and the results of viscometric measurements are critically examined. Furthermore a survey is given of the recent findings on the stereochemistry of polydienes. Other topics included are some aspects of initiation among which the validity of the seeding technique and some problems related with copolymerization. Finally the influence of coordinated agents on the anionic polymerization is reviewed and a mechanism for the propagation step is formulated.
Publication Year: 1988
Publication Date: 1988-01-01
Language: en
Type: review
Indexed In: ['crossref']
Access and Citation
Cited By Count: 148
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