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dc.contributor.author
Trindade, Suelen G.
dc.contributor.author
Bortolotto, Tanize
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Ciolino, Andrés Eduardo
dc.contributor.author
Schmidt, Vanessa
dc.contributor.author
Giacomelli, Cristiano
dc.date.available
2018-04-20T17:55:00Z
dc.date.issued
2017-12
dc.identifier.citation
Trindade, Suelen G.; Bortolotto, Tanize; Ciolino, Andrés Eduardo; Schmidt, Vanessa; Giacomelli, Cristiano; One-Pot Two-Step (First ROP, Then SET-LRP) Synthesis of Polycaprolactone-Polyacrylate Star Block Copolymers; Wiley VCH Verlag; Macromolecular Chemistry And Physics; 219; 4; 12-2017; 1-9
dc.identifier.issn
1022-1352
dc.identifier.uri
http://hdl.handle.net/11336/42861
dc.description.abstract
A one-pot, two-step method is applied to the controlled synthesis of polyacrylate-b-(polycaprolactone)2 three-arm AB2-type star block polymers. First, ring-opening polymerization (ROP) of ε-caprolactone is carried out in toluene using either stannous octoate (Sn(Oct)2) or diphenyl phosphate (DPP) as catalyst, and a multifunctional initiator featuring one bromoester and two alcohol groups. Then, single-electron transfer living radical polymerization (SET-LRP) of methyl acrylate and isobornyl acrylate is conducted in the same reaction vessel after sequential addition of its typical reactants, apart from the (PCL)2-Br macroinitiator generated in the first step, in either toluene/toluene + phenol or toluene/dimethyl sulfoxide solvent systems. DPP (the ROP catalyst) from the first step is found to take part in an acid?base reaction with tris[2-(dimethylamino)ethyl]amine (the SET-LRP N-ligand) in the second part, but stoichiometry could be adjusted to avoid interference and keep the controlled nature of the polymerizations. Interestingly, the electrochemically active Sn(Oct)2 ROP catalyst does not interfere with the SET-LRP process. Well-defined poly(methyl acrylate)-b-(polycaprolactone)2 and poly(isobornyl acrylate)-b-(polycaprolactone)2 are thus synthesized through a simple and cost-effective experimental procedure. The technique also applies to the synthesis of linear block copolymers.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley VCH Verlag
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Rop
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Set-Lrp
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Star Copolymers
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Caprolactone
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Otras Ingeniería Química
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Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
One-Pot Two-Step (First ROP, Then SET-LRP) Synthesis of Polycaprolactone-Polyacrylate Star Block Copolymers
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-16T13:38:58Z
dc.journal.volume
219
dc.journal.number
4
dc.journal.pagination
1-9
dc.journal.pais
Alemania
dc.journal.ciudad
Weinheim
dc.description.fil
Fil: Trindade, Suelen G.. Universidade Federal de Santa Maria; Brasil
dc.description.fil
Fil: Bortolotto, Tanize. Universidade Federal de Santa Maria; Brasil
dc.description.fil
Fil: Ciolino, Andrés Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
dc.description.fil
Fil: Schmidt, Vanessa. Universidade Federal de Santa Maria; Brasil
dc.description.fil
Fil: Giacomelli, Cristiano. Universidade Federal de Santa Maria; Brasil
dc.journal.title
Macromolecular Chemistry And Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/macp.201700486
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/macp.201700486
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