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dc.contributor.author
Abraham, Gustavo Abel
dc.contributor.author
Gallardo, Alberto
dc.contributor.author
Lozano, Angel E.
dc.contributor.author
San Roman, Julio
dc.date.available
2018-02-06T14:14:38Z
dc.date.issued
2000-03-09
dc.identifier.citation
Abraham, Gustavo Abel; Gallardo, Alberto; Lozano, Angel E.; San Roman, Julio; e-Caprolactone / ZnCl2 complex formation: characterization and ring-opening polymerization mechanism; John Wiley & Sons Inc; Journal of Polymer Science Part A: Polymer Chemistry; 38; 8; 9-3-2000; 1355-1365
dc.identifier.issn
0887-624X
dc.identifier.uri
http://hdl.handle.net/11336/35733
dc.description.abstract
ε-Caprolactone (ε-CL) has been mixed with ZnCl2 at different mol ratios. The resulting complex was characterized through 1H and 13C NMR spectroscopy in bulk and in solutions, differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD), and optical microscopy. Ring-opening polymerization of ε-caprolactone [M] using ZnCl2 as an initiator [I] at different monomer/initiator ratios has been successfully performed in xylene. The molecular weight of poly(ε-caprolactone) (PCL) as measured by gel permeation chromatografy (GPC) was found to depend linearly on the [M]/[I] ratio. Theoretical calculations were carried out to understand the geometry of the complex and the operating ring-opening mechanism. Both experimental and computational results and the presence of methylene–chloride end group, confirmed by NMR, are in agreement with a coordination–insertion mechanism for the ring-opening polymerization proposed in this article.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Inc
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ring-Opening Polymerization
dc.subject
Lactones
dc.subject
Zinc Chloride
dc.subject
Mechanism
dc.subject
Quantum-Mechanical Calculation
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.subject.classification
Recubrimientos y Películas
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
e-Caprolactone / ZnCl2 complex formation: characterization and ring-opening polymerization mechanism
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-02-02T19:44:23Z
dc.journal.volume
38
dc.journal.number
8
dc.journal.pagination
1355-1365
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Abraham, Gustavo Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
dc.description.fil
Fil: Gallardo, Alberto. Instituto de Ciencia y Tecnologia de Polimeros; España
dc.description.fil
Fil: Lozano, Angel E.. Instituto de Ciencia y Tecnologia de Polimeros; España
dc.description.fil
Fil: San Roman, Julio. Instituto de Ciencia y Tecnologia de Polimeros; España
dc.journal.title
Journal of Polymer Science Part A: Polymer Chemistry
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1099-0518(20000415)38:8%3C1355::AID-POLA20%3E3.0.CO;2-Z/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/(SICI)1099-0518(20000415)38:8<1355::AID-POLA20>3.0.CO;2-Z


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