[en] The influence of methyl substituent on the mechanism of the ring-opening polymerization of -lactones initiated by alkali metal alkoxides is discussed. Attention has been paid to the effect of the substituent position in the monomer molecule on the ring-opening mechanism, the 3,3-dimethyl-2-oxetanone (pivalolactone), 4-methyl-2-oxetanone (beta-butyrolactone) and 2-oxetanone (beta-propiolactone) being chosen as model monomers. Moreover, it was found unexpectedly that in the case of pivalolactone polymerization, besides open-chain polymers, cyclic oligomers are produced.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Kurcok, Piotr; Institute of Polymer Chemistry, Polish Academy of Sciences, Zabrze, Poland
Matuszowicz, Andrzej; Institute of Polymer Chemistry, Polish Academy of Sciences, Zabrze, Poland
Jedlinski, Zbigniew; Institute of Polymer Chemistry, Polish Academy of Sciences, Zabrze, Poland
Kricheldorf, Hans R; University of Hamburg, Germany > Institute of Technical and Macromolecular Chemistry
Dubois, Philippe ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Substituent effect in anionic polymerization of β-lactones initiated by alkali metal alkoxides
State Committee for Scientific Research, Grant No. 2 08769101 PAN - Polish Academy of Sciences [PL] F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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