The European Physical Journal E

, Volume 18, Issue 2, pp 159–166

Block copolymer adsorption from a homopolymer melt to an amine-terminated surface

  • A. C. Costa
  • R. J. Composto
  • P. Vlček
  • M. Geoghegan
Original Article

DOI: 10.1140/epje/i2005-10040-8

Cite this article as:
Costa, A.C., Composto, R.J., Vlček, P. et al. Eur. Phys. J. E (2005) 18: 159. doi:10.1140/epje/i2005-10040-8

Abstract.

Using neutron reflectometry, the adsorption of diblock copolymers from a neutral polystyrene (PS) matrix is studied as a function of substrate type and non-adsorbing block degree of polymerization. The block copolymer is poly(deutero styrene)-block-poly(methyl methacrylate) and the substrates are silicon oxide, SiOx, and SiOx functionalized with (3-aminopropyl)triethoxysilane (APTES). We have determined the equilibrium volume fraction-depth profiles for such films, and compared them with volume fraction profiles generated by self-consistent mean-field (SCMF) theory and find good agreement between the experimental and theoretical data. SCMF calculations show that the segmental interaction energy between PS matrix chains and APTES is two orders of magnitude stronger than that between PS and SiOx.

PACS.

68.08.De Structure, measurements and simulations61.12.Ha Neutron reflectometry83.80.Uv Block copolymers

Copyright information

© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • A. C. Costa
    • 1
  • R. J. Composto
    • 1
  • P. Vlček
    • 2
  • M. Geoghegan
    • 3
  1. 1.Department of Materials Science and Engineering, Laboratory for Research on the Structure of MatterUniversity of PennsylvaniaPhiladelphiaUSA
  2. 2.Institute of Macromolecular ChemistryAcademy of Sciences of the Czech RepublicPrague 6Czech Republic
  3. 3.Department of Physics and AstronomyUniversity of Sheffield, Hicks BuildingSheffieldUnited Kingdom