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dc.contributor.authorMa, Minglin
dc.contributor.authorThomas, Edwin L.
dc.contributor.authorYu, Bin
dc.contributor.authorLi, Baohui
dc.contributor.authorJin, Qinghua
dc.contributor.authorDing, Datong
dc.contributor.authorShi, An-Chang
dc.contributor.authorRutledge, Gregory C
dc.date.accessioned2012-01-30T18:14:55Z
dc.date.available2012-01-30T18:14:55Z
dc.date.issued2010-02
dc.date.submitted2010-02
dc.identifier.issn0024-9297
dc.identifier.issn1520-5835
dc.identifier.urihttp://hdl.handle.net/1721.1/68991
dc.description.abstractThe self-assembly of gyroid-forming diblock copolymers confined in cylindrical geometry is studied using a combination of computer simulations and experiments. The simulations, based on a system qualitatively representative of poly(styrene-b-isoprene), are performed with cylindrical nanopores of different diameter (D) and surface selectivity. The effects of the pore size and surface selectivity on morphology are systematically investigated. Different morphological sequences are predicted for two gyroid-forming diblock copolymers. The experiments are carried out on two gyroid-forming poly(styrene-b-dimethylsiloxane) block copolymer samples confined in the core of continuous core−shell nanofibers of different diameters, which are obtained by a coaxial two-fluid electrospinning technique. The internal microphase-separated morphologies of these fibers are investigated by transmission electron microscopy (TEM). Both simulations and experiments demonstrate that a rich variety of structures spontaneously form for the gyroid-forming diblock copolymers, depending on the conditions of cylindrical confinement. Many of these confinement-induced structures are quite different from those of cylinder-forming or lamella-forming block copolymers. Simulations further show that these structures depend sensitively on the block copolymer composition, surface selectivity, and the ratio D/L0 where L0 is the period of the equilibrium gyroid phase. While the simulation and experimental systems are representative of different chemistries, the morphological predictions of simulations are qualitatively consistent with the experimental observations.en_US
dc.description.sponsorshipMassachusetts Institute of Technology. Institute for Soldier Nanotechnologies (Contract DAAD-19-02-D-0002)en_US
dc.description.sponsorshipUnited States. Army Research Officeen_US
dc.language.isoen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/ma9022586en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alike 3.0en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/en_US
dc.sourceProf. Rutledge via Erja Kajosaloen_US
dc.titleGyroid-Forming Diblock Copolymers Confined in Cylindrical Geometry: A Case of Extreme Makeover for Domain Morphologyen_US
dc.typeArticleen_US
dc.identifier.citationMa, Minglin et al. “Gyroid-Forming Diblock Copolymers Confined in Cylindrical Geometry: A Case of Extreme Makeover for Domain Morphology.” Macromolecules 43.6 (2010): 3061-3071.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Institute for Soldier Nanotechnologiesen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.departmentKoch Institute for Integrative Cancer Research at MITen_US
dc.contributor.approverRutledge, Gregory C.
dc.contributor.mitauthorRutledge, Gregory C.
dc.contributor.mitauthorMa, Minglin
dc.contributor.mitauthorThomas, Edwin L.
dc.relation.journalMacromoleculesen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsMa, Minglin; Thomas, Edwin L.; Rutledge, Gregory C.; Yu, Bin; Li, Baohui; Jin, Qinghua; Ding, Datong; Shi, An-Changen
dc.identifier.orcidhttps://orcid.org/0000-0001-5911-6524
dc.identifier.orcidhttps://orcid.org/0000-0001-8137-1732
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


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