Anionic ring opening polymerization of ε-caprolactone initiated by lithium silanolates

Ring-opening homo- and co-polymerization reactions of ε-caprolactone were performed by employing anionic polymerization (high vacuum techniques) and lithium silanolates (LS) as initiators. LS were obtained by reaction between hexamethyl(cyclotrisiloxane) and sec-Bu–Li+, or from living poly(dimethyls...

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Detalhes bibliográficos
Autores: Satti, Angel Jose, de Freitas, Augusto G. O., Sena Marani, María Loreta, Villar, Marcelo Armando, Valles, Enrique Marcelo, Giacomelli, Cristiano, Ciolino, Andrés Eduardo
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/27087
Acesso em linha:http://hdl.handle.net/11336/27087
Access Level:acceso abierto
Palavra-chave:Lithium
Silanolates
Caprolactone
Polymerization
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
Descrição
Resumo:Ring-opening homo- and co-polymerization reactions of ε-caprolactone were performed by employing anionic polymerization (high vacuum techniques) and lithium silanolates (LS) as initiators. LS were obtained by reaction between hexamethyl(cyclotrisiloxane) and sec-Bu–Li+, or from living poly(dimethylsiloxanyl)lithium chains. The results indicated that LS are efficient initiators for the ring-opening polymerization of ε-caprolactone, providing the respective homogeneous polymers in good yields.

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