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Block Copolymer-Assisted Microcellular Supercritical CO2 Foaming of Polymers and Blends

dc.rights.licenseopen
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorDUMON, Michel
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorREGLERO RUIZ, José Antonio
hal.structure.identifierUniv Valladolid, Dept Condensed Matter Phys
dc.contributor.authorPINTO SANZ, Javier
hal.structure.identifierUniv Valladolid, Dept Condensed Matter Phys
dc.contributor.authorRODRIGUEZ PEREZ, Miguel Angel
hal.structure.identifierIUT, Dept Sci & Genie Mat [Univ Bordeaux]
dc.contributor.authorTALLON, Jean-Marc
hal.structure.identifierIUT, Dept Sci & Genie Mat [Univ Bordeaux]
dc.contributor.authorPEDROS, Matthieu
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorCLOUTET, Eric
IDREF: 151048681
dc.contributor.authorVIOT, Philippe
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2012
dc.identifier.issn0262-4893
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20467
dc.description.abstractEnThe behaviour in supercritical CO2 of block copolymers containing styrenic, butadiene, and methacrylic or perfluroalkyl blocks is studied in view of a specific swelling and foaming by a gas dissolution process. These block copolymers are considered as neat materials or as additives in blends e.g in polystyrene (PS) or polymethylmethacrylate (PMMA) matrices. In both cases (neat or blend) the copolymers may exhibit a structuration at a micro or nano level. The phase separated (nano) structures depend on the block type and the concentration of copolymers in the polymer matrix, so that micelles, vesicles, lamellas, or warm-like structures are generated. Furthermore when one block is chosen as a highly CO2-philic moiety the nanostructures are able to act as CO2 reservoirs. The result is the possibility to control microcellular foaming, or sometimes nanocellular foaming, of commodity amorphous polymers such as PMMA and PS. Besides, at room temperature, the blocks can be either glassy or rubbery in order to freeze the growth and coalescence of cells during foaming. Different cellular polymers were elaborated by varying either the copolymer type or the foaming conditions (saturation pressure, temperature, depressurization rate). CO sizes are accessible in a range from 0.2 to 200 mu m, and densities from 0.40 to 1 g/cm(3). It is also shown that nanostructuring polymers are also efficient to produce polymer foams with oriented / structured voids. This new approach could be used to produce nanocellular or ultra microcellular polymer foams in a simple process, using blending and extrusion.
dc.language.isoen
dc.publisherSmithers Rapra
dc.subject.enPMMA
dc.subject.enMORPHOLOGY
dc.subject.enSOLUBILITY
dc.subject.enBEHAVIOR
dc.subject.enPOLYPROPYLENE
dc.subject.enTEMPERATURE
dc.title.enBlock Copolymer-Assisted Microcellular Supercritical CO2 Foaming of Polymers and Blends
dc.typeArticle de revue
dc.subject.halChimie/Polymères
bordeaux.journalCellular Polymers
bordeaux.page207-222
bordeaux.volume31
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue4
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-00758412
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00758412v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Cellular%20Polymers&rft.date=2012&rft.volume=31&rft.issue=4&rft.spage=207-222&rft.epage=207-222&rft.eissn=0262-4893&rft.issn=0262-4893&rft.au=DUMON,%20Michel&REGLERO%20RUIZ,%20Jos%C3%A9%20Antonio&PINTO%20SANZ,%20Javier&RODRIGUEZ%20PEREZ,%20Miguel%20Angel&TALLON,%20Jean-Marc&rft.genre=article


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