Templated crystallization from oriented gyroid and hexagonal melt phases in a diblock copolymer
| dc.contributor.author | Hamley, I. W. | en |
| dc.contributor.author | Castelletto, V. | en |
| dc.contributor.author | Floudas, G. | en |
| dc.contributor.author | Schipper, F. | en |
| dc.date.accessioned | 2015-11-24T18:34:23Z | |
| dc.date.available | 2015-11-24T18:34:23Z | |
| dc.identifier.issn | 0024-9297 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/16924 | |
| dc.rights | Default Licence | - |
| dc.subject | to-order transitions | en |
| dc.subject | x-ray-scattering | en |
| dc.subject | block-copolymers | en |
| dc.subject | confined crystallization | en |
| dc.subject | polymer crystallization | en |
| dc.subject | microphase separation | en |
| dc.subject | crystal orientations | en |
| dc.subject | diffraction station | en |
| dc.subject | cubic phases | en |
| dc.subject | growth | en |
| dc.title | Templated crystallization from oriented gyroid and hexagonal melt phases in a diblock copolymer | en |
| heal.abstract | Crystallization from oriented hexagonal-packed cylinder (hex) and gyroid (gyr) melt phases in an asymmetric poly(ethylene oxide)-b-poly(isoprene) diblock copolymer is investigated by small-angle X-ray scattering with simultaneous rheology. Crystallization from a shear-oriented hex phase leads to crystalline lamellar planes parallel to the cylinders and a step increase in domain spacing. Crystallization from an oriented gyroid crystal, grown from a shear-aligned hex phase, is templated by the {220} lattice planes, leading to an oriented crystalline lamellar phase. The domain spacing increases by 40% on crystallization, indicating a transition that is strictly not epitaxial, although crystallographic register between lattice planes is maintained. The orientation of the lamellar crystal structure is compared to that recently observed for a poly(oxybutylene)-b-poly(oxyethylene) diblock crystallized from an aligned gyroid phase. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.1021/Ma0207069 | - |
| heal.identifier.secondary | <Go to ISI>://000178954100030 | - |
| heal.identifier.secondary | http://pubs.acs.org/doi/pdfplus/10.1021/ma0207069 | - |
| heal.journalName | Macromolecules | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2002 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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