Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/7259
Title: The tricontinuous 3ths(5) phase: a new morphology in copolymer melts
Authors: Fischer, MG
De Campo, L
Kirkensgaard, JJK
Hyde, ST
Schröder-Turk, GE
Keywords: Nanostructures
Copolymers
Molecular structure
Energy
Equilibrium
Morphology
Issue Date: 23-Oct-2014
Publisher: ACS Publications
Citation: Fischer, M. G., De Campo, L., Kirkensgaard, J. J. K., Hyde, S. T., & Schröder-Turk, G. E. (2014). The tricontinuous 3ths(5) Phase: a new morphology in copolymer melts. Macromolecules, 47(21), 7424-7430. doi:10.1021/ma5016352
Abstract: Self-assembly remains the most efficient route to the formation of ordered nanostructures, including the double gyroid network phase in diblock copolymers based on two intergrown network domains. Here we use self-consistent field theory to show that a tricontinuous structure with monoclinic symmetry, called 3ths(5), based on the intergrowth of three distorted ths nets, is an equilibrium phase of triblock star-copolymer melts when an extended molecular core is introduced. The introduction of the core enhances the role of chain stretching by enforcing larger structural length scales, thus destabilizing the hexagonal columnar phase in favor of morphologies with less packing frustration. This study further demonstrates that the introduction of molecular cores is a general concept for tuning the relative importance of entropic and enthalpic free energy contributions, hence providing a tool to stabilize an extended repertoire of self-assembled nanostructured materials. © 2014, American Chemical Society.
Gov't Doc #: 6903
URI: http://dx.doi.org/10.1021/ma5016352
http://apo.ansto.gov.au/dspace/handle/10238/7259
ISSN: 1520-5835
Appears in Collections:Journal Articles

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.