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Diblock Copolymer Thin Thin Film Melts on Striped Heterogeneous Surfaces: Parallel, Perpendicular and Mixed Lamellar Morphologies

Pereira, G.; Williams, David

Description

We consider the problem of a diblock copolymer melt thin film on a striped surface. Because of the different surface energies, the different stripes have different preferences for each of the blocks, while the upper free surface may also prefer one of the blocks. As a result of a combination of factors such as the surface tensions and chain stretching, a number of morphologies may appear. We allow for perpendicular, parallel, and mixed type lamellae and study the resulting phase diagrams. These...[Show more]

dc.contributor.authorPereira, G.
dc.contributor.authorWilliams, David
dc.date.accessioned2015-12-13T23:34:47Z
dc.identifier.issn0024-9297
dc.identifier.urihttp://hdl.handle.net/1885/93612
dc.description.abstractWe consider the problem of a diblock copolymer melt thin film on a striped surface. Because of the different surface energies, the different stripes have different preferences for each of the blocks, while the upper free surface may also prefer one of the blocks. As a result of a combination of factors such as the surface tensions and chain stretching, a number of morphologies may appear. We allow for perpendicular, parallel, and mixed type lamellae and study the resulting phase diagrams. These diagrams should provide a crude guide for experimental studies on such systems. Our main conclusions are 2-fold. First the phase diagram is intricate and complicated. Second, to produce a single crystal oriented along the stripes, it is best to use thin films and a diblock lamellar size equal to or larger than the stripe width.
dc.publisherAmerican Chemical Society
dc.sourceMacromolecules
dc.subjectKeywords: Diblock copolymers; Block copolymers; Crystal orientation; Interfacial energy; Molten materials; Morphology; Phase diagrams; Single crystals; Surface structure; Surface tension; Thin films; Plastic films
dc.titleDiblock Copolymer Thin Thin Film Melts on Striped Heterogeneous Surfaces: Parallel, Perpendicular and Mixed Lamellar Morphologies
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume32
dc.date.issued1999
local.identifier.absfor091209 - Polymers and Plastics
local.identifier.ariespublicationMigratedxPub24994
local.type.statusPublished Version
local.contributor.affiliationPereira, G., College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationWilliams, David, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage758
local.bibliographicCitation.lastpage764
dc.date.updated2015-12-12T09:37:30Z
local.identifier.scopusID2-s2.0-0033537422
CollectionsANU Research Publications

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