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dc.contributor.authorZhang, Zhen
dc.contributor.authorGnanou, Yves
dc.contributor.authorHadjichristidis, Nikolaos
dc.date.accessioned2016-11-03T13:22:51Z
dc.date.available2016-11-03T13:22:51Z
dc.date.issued2016
dc.identifier.citationZhang Z, Gnanou Y, Hadjichristidis N (2016) Well-defined 4-arm stars with hydroxy-terminated polyethylene, polyethylene-b-polycaprolactone and polyethylene-b-(polymethyl methacrylate) 2 arms . Polym Chem 7: 5507–5511. Available: http://dx.doi.org/10.1039/c6py01090c.
dc.identifier.issn1759-9954
dc.identifier.issn1759-9962
dc.identifier.doi10.1039/c6py01090c
dc.identifier.urihttp://hdl.handle.net/10754/621691
dc.description.abstractBis-boron-thexyl-silaboracycle was prepared by hydroboration of 1,4-bis(methyldivinylsilyl)butane with thexylborane and used to initiate the polyhomologation of dimethylsulfoxonium methylide to afford well-defined hydroxy-terminated 4-arm polyethylene (PE) stars. The synthesized PE stars were transformed to (PE-b-PCL)4 starblock copolymers via the ring-opening polymerization of ϵ-caprolactone (CL) initiated by the hydroxyl end groups of (PE-OH)4 in the presence of P2-tBu phosphazene base. Esterification of the hydroxyl groups of the OH-terminated PE star with 2,2-dichloroacetyl chloride led to (PE-Cl2)4 which was used as initiator (eight initiating atom transfer radical polymerization, ATRP, sites) for the synthesis of (PE-b-PMMA2)4 dendrimer-like stars by the ATRP of methyl methacrylate (MMA). All intermediates and final products were characterized by high temperature gel permeation chromatography and proton nuclear magnetic resonance spectroscopy. © 2016 The Royal Society of Chemistry.
dc.description.sponsorshipResearch reported in this publication was supported by the King Abdullah University of Science and Technology.
dc.publisherRoyal Society of Chemistry (RSC)
dc.titleWell-defined 4-arm stars with hydroxy-terminated polyethylene, polyethylene-b-polycaprolactone and polyethylene-b-(polymethyl methacrylate) 2 arms
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentPolymer Synthesis Laboratory
dc.identifier.journalPolym. Chem.
kaust.personZhang, Zhen
kaust.personGnanou, Yves
kaust.personHadjichristidis, Nikolaos


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