Accessibility navigation


Melt brushes of diblock copolymer

Matsen, M. W. and Griffiths, G. H. ORCID: https://orcid.org/0009-0002-6340-3686 (2009) Melt brushes of diblock copolymer. European Physical Journal E, 29 (2). pp. 219-227. ISSN 1292-8941

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1140/epje/i2009-10470-2

Abstract/Summary

Using self-consistent field theory (SCFT), we investigate the morphologies formed by a melt brush of AB diblock copolymers grafted to a flat substrate by their B ends. In addition to a laterally uniform morphology, SCFT predicts three ordered morphologies exhibiting different periodic patterns at the air surface: a hexagonal array of A-rich dots, an alternating sequence of A- and B-rich stripes, and a hexagonal pattern of B-rich dots. When the phase diagram of the tethered film is plotted as a function of A/B incompatibility, $\chi N$, and diblock composition, $f$, it resembles the bulk phase diagram with the periodic phases converging to a mean-field critical point at weak segregation. The periodic-phase region in the phase diagram shrinks with increasing grafting density and expands when the air surface acquires an affinity for the grafted B blocks.

Item Type:Article
Refereed:Yes
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Mathematics and Statistics
ID Code:15741
Publisher:Springer

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation