Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Electric Field Induced Gyroid-to-Cylinder Transitions in Concentrated Diblock Copolymer Solutions

Title data

Schmidt, Kristin ; Pester, Christian W. ; Schoberth, Heiko G. ; Zettl, Heiko ; Schindler, Kerstin A. ; Böker, Alexander:
Electric Field Induced Gyroid-to-Cylinder Transitions in Concentrated Diblock Copolymer Solutions.
In: Macromolecules. Vol. 43 (11 May 2010) Issue 9 . - pp. 4268-4274.
ISSN 0024-9297
DOI: https://doi.org/10.1021/ma100278q

Official URL: Volltext

Abstract in another language

Block copolymers show a variety of microdomain structures due to their ability to phase separate. The bicontinuous gyroid phase and its behavior under the influence of external fields are particularly interesting with regard to technological applications. In this paper, we studied the behavior of a gyroid-forming block copolymer solution under the influence of an external electric field. As a model system, we used a solution of polystyrene-b-polyisoprene in toluene. We will show that the gyroid phase can be aligned by a moderate electric field and can be forced to undergo a phase transition to the cylindrical phase under a sufficiently high electric field. This process is reversible, and the cylinders immediately reconnect after the electric field is switched off, generating a highly aligned gyroid phase.Block copolymers show a variety of microdomain structures due to their ability to phase separate. The bicontinuous gyroid phase and its behavior under the influence of external fields are particularly interesting with regard to technological applications. In this paper, we studied the behavior of a gyroid-forming block copolymer solution under the influence of an external electric field. As a model system, we used a solution of polystyrene-b-polyisoprene in toluene. We will show that the gyroid phase can be aligned by a moderate electric field and can be forced to undergo a phase transition to the cylindrical phase under a sufficiently high electric field. This process is reversible, and the cylinders immediately reconnect after the electric field is switched off, generating a highly aligned gyroid phase.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry II
Research Institutions > Collaborative Research Centers, Research Unit > SFB 481 Komplexe Makromolekül- und Hybridsysteme in inneren und äußeren Feldern
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Research Institutions
Research Institutions > Collaborative Research Centers, Research Unit
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
500 Science > 540 Chemistry
Date Deposited: 14 Mar 2016 08:13
Last Modified: 19 Apr 2016 12:46
URI: https://eref.uni-bayreuth.de/id/eprint/31710