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Star Block Copolymers and Hexafullerene Stars via Derivatization of Star-Shaped Polystyrenes

dc.rights.licenseopen
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorCLOUTET, Eric
IDREF: 151048681
hal.structure.identifierInstitut des Sciences Chimiques de Rennes [ISCR]
dc.contributor.authorFILLAUT, Jean-Luc
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorASTRUC, Didier
hal.structure.identifierKing Abdullah University of Science and Technology [Saudi Arabia] [KAUST]
dc.contributor.authorGNANOU, Yves
dc.date.accessioned2020
dc.date.available2020
dc.date.issued1999
dc.identifier.issn0024-9297
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/19584
dc.description.abstractEnThe end-functionalization of hexaarm star-shaped polystyrene (PS), prepared via “living” cationic polymerization, by organosilicon compounds was investigated. The presence of a sec-chlorine atom at each branch end was first confirmed by 1H NMR. After activation of these chain ends by TiCl4, both allylic and azido groups were introduced through the use of their trimethylsilyl derivatives (allyltrimethylsilane and trimethylsilyl azide, respectively), particularly taking advantage of the high affinity of silicon compounds toward electrophilic reagents. These end-standing allyl and azide functions on the hexaarm PS stars were then transformed into hydroxyl and amino groups with use of classical organic chemistry reactions. PS stars carrying six fullerenes on their periphery were also generated from hexaazido star samples. The presence of these six C60 entities was confirmed by miscellaneous characterization methods, including 1H NMR, size-exclusion chromatography, thermal gravimetry, and cyclic voltammetry. Besides the synthesis of these ω-functionalized stars, PS6-b-PEO6 star block copolymers were also prepared with use of the hexahydroxy samples as macroinitiators of ethylene oxide polymerization.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enStar Block Copolymers and Hexafullerene Stars via Derivatization of Star-Shaped Polystyrenes
dc.typeArticle de revue
dc.identifier.doi10.1021/ma981123v
dc.subject.halChimie/Polymères
bordeaux.journalMacromolecules
bordeaux.page1043-1054
bordeaux.volume32
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue4
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-02930399
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02930399v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Macromolecules&rft.date=1999&rft.volume=32&rft.issue=4&rft.spage=1043-1054&rft.epage=1043-1054&rft.eissn=0024-9297&rft.issn=0024-9297&rft.au=CLOUTET,%20Eric&FILLAUT,%20Jean-Luc&ASTRUC,%20Didier&GNANOU,%20Yves&rft.genre=article


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