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Vesicles made of PS-PI cyclic diblock copolymers: In situ freeze-drying cryo-TEM and dynamic light scattering experiments

dc.rights.licenseopen
hal.structure.identifierCentre de Recherches sur les Macromolécules Végétales [CERMAV]
dc.contributor.authorPUTAUX, Jean-Luc
hal.structure.identifierUniv Fed Santa Catarina, Dept Quim
dc.contributor.authorMINATTI, Edson
hal.structure.identifierLaboratoire de Chimie des polymères organiques [LCPO]
dc.contributor.authorLEFEBVRE, Christelle
hal.structure.identifierLaboratoire de Chimie des polymères organiques [LCPO]
hal.structure.identifierTeam 3 LCPO : Polymer Self-Assembly & Life Sciences
dc.contributor.authorBORSALI, Redouane
hal.structure.identifierLaboratoire de Chimie des polymères organiques [LCPO]
dc.contributor.authorSCHAPPACHER, Michel
hal.structure.identifierLaboratoire de Chimie des polymères organiques [LCPO]
hal.structure.identifierTeam 1 LCPO : Polymerization Catalyses & Engineering
dc.contributor.authorDEFFIEUX, Alain
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2005
dc.identifier.issn1359-6640
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/20688
dc.description.abstractEnWe have studied the morphology of self-assembled micelles made of linear and cyclic poly(styrene-b-isoprene) PS-b-PI block copolymers dispersed in selective solvents of the PI block (n-heptane, n-decane). Up to a copolymer concentration of 5 mg mL(-1), the micelles made from linear block copolymer chains adopt a spherical shape. Those arising from cyclic copolymer chains having exactly the same molar mass and volume fraction self-assemble into (i) planar sun. ower-shaped particles at low concentration (c < 0.1 mg mL(-1)), (ii) giant wormlike micelles at intermediate concentration (0.1 mg mL(-1) < c < 2 mg mL(-1)) and (iii) vesicles at higher concentration (2 mg mL(-1) < c < 5 mg mL(-1)). Those results were obtained using dynamic light scattering and in situ freeze-drying cryo-transmission electron microscopy. In this contribution, we discuss the effects of concentration and temperature on the morphology of the self-assembled particles made from both linear and cyclic PS-PI copolymers, and highlight the surprising vesicle formation in cyclic block copolymer solutions.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enDILUTE-SOLUTION
dc.subject.enAQUEOUS-SOLUTION
dc.subject.enMULTIPLE MORPHOLOGIES
dc.subject.enCONCENTRATED-SOLUTIONS
dc.subject.enTRANSMISSION ELECTRON-MICROSCOPY
dc.subject.enPOLYSTYRENE-BLOCK-POLY(ETHYLENE PROPYLENE) COPOLYMER
dc.subject.enANGLE NEUTRON-SCATTERING
dc.subject.enACID) BLOCK-COPOLYMERS
dc.subject.enSELECTIVE SOLVENTS
dc.subject.enDRUG-DELIVERY
dc.title.enVesicles made of PS-PI cyclic diblock copolymers: In situ freeze-drying cryo-TEM and dynamic light scattering experiments
dc.typeArticle de revue
dc.identifier.doi10.1039/b403157a
dc.subject.halChimie/Polymères
bordeaux.journalFaraday Discussions
bordeaux.page163-178
bordeaux.volume128
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-00394004
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00394004v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Faraday%20Discussions&amp;rft.date=2005&amp;rft.volume=128&amp;rft.spage=163-178&amp;rft.epage=163-178&amp;rft.eissn=1359-6640&amp;rft.issn=1359-6640&amp;rft.au=PUTAUX,%20Jean-Luc&amp;MINATTI,%20Edson&amp;LEFEBVRE,%20Christelle&amp;BORSALI,%20Redouane&amp;SCHAPPACHER,%20Michel&amp;rft.genre=article


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