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Lateral phase separation in grafted diblock copolymer films

O'Driscoll, B., Griffiths, G. H. ORCID: https://orcid.org/0009-0002-6340-3686, Matsen, M. W., Perrier, S., Ladmiral, V. and Hamley, I. W. ORCID: https://orcid.org/0000-0002-4549-0926 (2010) Lateral phase separation in grafted diblock copolymer films. Macromolecules, 43 (19). pp. 8177-8184. ISSN 0024-9297

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To link to this item DOI: 10.1021/ma101093f

Abstract/Summary

Tethered films of polystyrene-block-poly(methyl methacrylate) copolymers of varying composition and molecular weight were investigated using atomic force microscopy and the observed structures compared with theoretical predictions. Although the experimental results were in qualitative agreement with the theory, there was significant quantitative variation. This was attributed to the presence of solvent in the films prior to and during annealing, a hypothesis supported by new preliminary calculations reported here. Solvent exchange experiments (where a good solvent for both polymer blocks was gradually replaced by a selective solvent), were also performed on the films. This procedure generated textured films in which the structure was defined by miscibility of the polymer blocks with the second solvent.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:8022
Publisher:American Chemical Society

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