Anionic Ring Opening Polymerization of e-Caprolactone Initiated by Lithium Silanolates

ANGEL J. SATTI; AUGUSTO G. O. DE FREITAS; MARÍA LORETA SENA MARANI; MARCELO A. VILLAR; ENRIQUE M. VALLÉS; CRISTIANO GIACOMELLI; ANDRÉS E. CIOLINO

AUSTRALIAN JOURNAL OF CHEMISTRY

CSIRO PUBLISHING

Lugar: Collingwood; Año: 2017 vol. 70 p. 106 - 112

0004-9425

Ring-opening homo- and co-polymerization reactions of e-caprolactone were performed by employing anionicpolymerization (high vacuum techniques) and lithium silanolates (LS) as initiators. LS were obtained by reactionbetween hexamethyl(cyclotrisiloxane) and sec-BuLiþ, or from living poly(dimethylsiloxanyl)lithium chains. The resultsindicated that LS are efficient initiators for the ring-opening polymerization of e-caprolactone, providing the respectivehomogeneous polymers in good yields.(online since 07/2016)