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Controlling the morphology of polybutadiene-poly(ethylene oxide) diblock copolymers in bulk and the orientation in thin films by attachment of alkyl side chains

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dc.contributor.coauthorSchlaad, Helmut
dc.contributor.departmentDepartment of Chemistry
dc.contributor.kuauthorDemirel, Adem Levent
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.date.accessioned2024-11-09T22:59:24Z
dc.date.issued2008
dc.description.abstractA polybutadiene(19)-block-poly(ethylene oxide)(94) (PB-PEO) has been modified by free-radical additions of 2-ethylhexanethiol, 1-decanethiol, and 1-dodecanethiol separately to the PB block. The block copolymers were characterized by DSC, SAXS, XRD and AFM measurements. Above the melting temperature of PEC, PB-PEO showed hexagonal morphology having PB cylinders in the PEO matrix. The addition of alkyl side chains decreased the volume fraction of PEO and the morphology changed to lamellar for ethylhexyl side chains and to reversed hexagonal morphology with PEO cylinders in the PB/alkyl chain matrix for decyl and dodecyl side chains. Below the melting temperature of PEO, all polymers showed lamellar morphology. In the case of dodecyl side chains, the lamellar morphology Oriented perpendicular to the air/film interface and was stable against high temperature annealing. (c) 2008 Elsevier Ltd. All rights reserved.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue16
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshipMax Planck Society We thank Ines Below for the synthesis of the block copolymers and the Max Planck Society for financial support.
dc.description.volume49
dc.identifier.doi10.1016/j.polymer.2008.05.041
dc.identifier.eissn1873-2291
dc.identifier.issn0032-3861
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-47149101245
dc.identifier.urihttps://doi.org/10.1016/j.polymer.2008.05.041
dc.identifier.urihttps://hdl.handle.net/20.500.14288/7871
dc.identifier.wos258437100017
dc.keywordsSemicrystalline-amorphous block
dc.keywordsCopolymers
dc.keywordsSide chain effects
dc.keywordsMorphology block-copolymers
dc.keywordsCrystallization
dc.keywordsInterfaces
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofPolymer
dc.subjectPolymer science
dc.titleControlling the morphology of polybutadiene-poly(ethylene oxide) diblock copolymers in bulk and the orientation in thin films by attachment of alkyl side chains
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorDemirel, Adem Levent
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Chemistry
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relation.isOrgUnitOfPublication.latestForDiscovery035d8150-86c9-4107-af16-a6f0a4d538eb
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