Structure and properties of a semifluorinated diblock copolymer modified epoxy blend

[en] Novel nanostructured thermosetting materials have been prepared by modification of an epoxy resin with a semifluorinated diblock copolymer, poly(heptadecafluorodecyl acrylate)-b-poly(caprolactone), PaF-b-PCL. In a first step, the phase behavior and linear viscoelasticity of PaF-b-PCL were investigated. According to the segregation regime, no order-order transitions were detected, being the order-disorder transition temperature beyond the degradation temperature. Atomic force microscopy (AFM) images of the block copolymer after different thermal treatments revealed that self-assembly takes place into spherical nanodomains, which is consistent with the copolymer composition. This block copolymer was further used to prepare a nanostructured thermoset blend with an epoxy resin. DSC and DMA analysis reveals microphase separation of PaF block from the epoxy-rich phase after curing. The PaF block self-assembled into wormlike and spherical micelles in the thermoset system. This nanostructured blend presented unique surface properties showing high hydrophobicity (upsilon = 109 degrees) and low surface energy (17 mN/m).

Research Center/Unit :

Center for Education and Research on Macromolecules (CERM)

Disciplines :

Chemistry
Materials science & engineering

Author, co-author :

Ocando, Connie; Universidad Paıs Vasco/Euskal Herriko Unibertsitatea, Donostia-San Sebastian, Spain > Dpto. Ingenierıa Quımica y M. Ambiente > “Materials + Technologies” Group, Polytechnic School

Serrano, Elena; Universidad Paıs Vasco/Euskal Herriko Unibertsitatea, Donostia-San Sebastian, Spain > Dpto. Ingenierıa Quımica y M. Ambiente > “Materials + Technologies” Group, Polytechnic School

Tercjak, Agnieszka; Universidad Paıs Vasco/Euskal Herriko Unibertsitatea, Donostia-San Sebastian, Spain > Dpto. Ingenierıa Quımica y M. Ambiente > “Materials + Technologies” Group, Polytechnic School

Pena, Cristina; Universidad Paıs Vasco/Euskal Herriko Unibertsitatea, Donostia-San Sebastian, Spain > Dpto. Ingenierıa Quımica y M. Ambiente > “Materials + Technologies” Group, Polytechnic School

Kortaberria, Galder; Universidad Paıs Vasco/Euskal Herriko Unibertsitatea, Donostia-San Sebastian, Spain > Dpto. Ingenierıa Quımica y M. Ambiente > “Materials + Technologies” Group, Polytechnic School

Calberg, Cédric ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Grignard, Bruno ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Carrasco, Pedro M; Centre for Electrochemical Technologies (CIDETEC), San Sebastian, Spain

Mecerreyes, David; Centre for Electrochemical Technologies (CIDETEC), San Sebastian, Spain

Mondragon, Inaki; Universidad Paıs Vasco/Euskal Herriko Unibertsitatea, Donostia-San Sebastian, Spain > Dpto. Ingenierıa Quımica y M. Ambiente > “Materials + Technologies” Group, Polytechnic School

Language :

English

Title :

Structure and properties of a semifluorinated diblock copolymer modified epoxy blend

Publication date :

29 May 2007

Journal title :

Macromolecules

ISSN :

0024-9297

eISSN :

1520-5835

Publisher :

Amer Chemical Soc, Washington, United States - Washington

Volume :

Issue :

Pages :

4068-4074

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://pubs.acs.org/doi/pdf/10.1021/ma070585i

Name of the research project :

NANOTRON project; MAT2003-08125; Nanostructured and functional polymer-based materials and nanocomposites (NANOFUN-POLY) project

Funders :

Gobierno Vasco
Ministerio de Ciencia y Tecnologıa

Available on ORBi :

since 29 January 2009

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