Synthesis of poly(2-methyl-3-hydroxyoctanoate) via anionic polymerization of α-methyl-<i>β</i>-pentyl-<i>β</i>-propiolactone
Z Jedlinski, AH Arkin, B Hazer, G Adamus, M Kowalczuk, RW Lenz
editorial (Uluslararası, Hakemli) | Yazar(lar): Z Jedlinski, AH Arkin, B Hazer, G Adamus, M Kowalczuk, RW Lenz | Yıl: 2001 | Dergi/Kurum: BIOMACROMOLECULES | İndeks: WOS.SCI | DOI: 10.1021/bm015528q — Özet: Synthesis of an a,beta-alkyl branched polyester, i.e., poly(2-methyl-3-hydroxyoctanoate), has been accomplished v
Synthesis of an a,beta-alkyl branched polyester, i.e., poly(2-methyl-3-hydroxyoctanoate), has been accomplished via anionic polymerization of alpha-methyl-beta-pentyl-beta-propiolactone mediated by supramolecular complexes of potassium methoxide or potassium hydroxide, respectively. The structure of resulting polymers has been established by electrospray ionization multistage mass spectrometry (ESI-MSn), FT-IR, NMR, and GPC analyses. Previously proposed addition-elimination mechanism of the polymerization of beta-lactones containing alpha-hydrogen by alkoxide anion has been confirmed to operate also in the case of beta-lactone having alkyl substituents in both alpha and beta positions.