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On the mechanism of polymerization of cyclic esters induced by tin(II) octoate
Author(s) -
Penczek Stanislaw,
Duda Andrzej,
Kowalski Adam,
Libiszowski Jan,
Majerska Katarzyna,
Biela Tadeusz
Publication year - 2000
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200007)157:1<61::aid-masy61>3.0.co;2-6
Subject(s) - tin , alkoxide , polymerization , chemistry , polymer chemistry , alcohol , mechanism (biology) , materials science , organic chemistry , catalysis , polymer , philosophy , epistemology
Mechanism of initiation and propagation in polymerization of ϵ‐caprolactone and L,L‐dilactide induced with tin(II) octoate (Sn(Oct) 2 ) and Sn(Oct) 2 / n ‐butyl alcohol system is presented. Tin(II) alkoxide bond formation is required in reaction of Sn(Oct) 2 with hydroxyl group containing compound to form a true initiator. Then tin(II) alkoxide end group is an active centre in the further propagation.