Surface micellar nanopattern formation of adsorbed diblock copolymer systems

Citation
Ey. Kramarenko et al., Surface micellar nanopattern formation of adsorbed diblock copolymer systems, MACROMOLEC, 32(10), 1999, pp. 3495-3501
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULES
ISSN journal
0024-9297 → ACNP
Volume
32
Issue
10
Year of publication
1999
Pages
3495 - 3501
Database
ISI
SICI code
0024-9297(19990518)32:10<3495:SMNFOA>2.0.ZU;2-G
Abstract
In this paper, we investigate theoretically the structure of an ultrathin l ayer of diblock copolymers. It is assumed that one of the blocks is strongl y adsorbed on a planar surface while the nonadsorbed block aggregates with the formation of surface micelles. We adopt a simple model in which the ads orbed blocks of the copolymers are assumed: to form a two-dimensional melt while the surface micelles of the second blocks are approximated by parts o f a sphere. The equilibrium structure of the micelles, which is governed by the interplay of the surface energy which favours the aggregation process and the energy of stretching of the adsorbed blocks is analyzed. It is show n that the number of the chains in one micelle, the radius and the height o f the micelles scale with the length N-B of a nonadsorbed block as N-B(1/2) .