Summary
Living cationic polymerization of isobutyl vinyl ether was achieved by EtAlCl2 in the presence of ethyl acetate at rather high temperatures up to +25°C in toluene. In the absence of the ester additives, neither living nor long-lived propagating species were formed under these conditions. Similarly, living propagating species of vinyl ethers with an ester unit in the pendant (2-vinyloxyethyl benzoate and methacrylate) were obtained with EtAlCl2 alone. The obtained polymers showed a very narrow molecular weight distribution (¯Mw/¯Mn<1.2) and the ¯Mn was directly proportional to the monomer conversion.
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Aoshima, S., Higashimura, T. Living cationic polymerization of vinyl monomers by organoaluminium halides. Polymer Bulletin 15, 417–423 (1986). https://doi.org/10.1007/BF00265723
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DOI: https://doi.org/10.1007/BF00265723