Grull, H.
, Sung, L.
, Karim, A.
, Douglas, J.
, Satija, S.
, Hayashi, M.
, Jinnai, H.
, Hashimoto, T.
and Han, C.
(2004),
Finite-Size Effects on Surface Segregation in Polymer Blend Films Above and Below the Critical Point of Phase Separation, Europhysics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852233
(Accessed October 9, 2025)
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Finite-Size Effects on Surface Segregation in Polymer Blend Films Above and Below the Critical Point of Phase Separation
Published
Author(s)
H Grull, , , , , Makoto Hayashi, H Jinnai, TT Hashimoto,
Abstract
We investigate the influence of temperature and confinement on surface segregation in thin films of deuterated polybutadiene and polyisoprene near the critical point for phase separation. Neutron reflectivity measurements show that polyisoprene enriches at the air and silicon interfaces in both the 1 and 2-phase regions. A transition between in-plane and surface-directed (layered) phase separation is observed with increasing film thickness.Citation
Europhysics Letters
Volume
65
Issue
No. 5
Pub Type
Journals
Download Paper
Keywords
blend film, finite si, phase separation, surface correlation length, surface segregation critical point, surface-directed phase separation
Citation
Issues
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Created February 29, 2004, Updated October 12, 2021