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Substrate dependence of morphology in thin film polymer blends of polystyrene and
 

Summary: Substrate dependence of morphology in thin
film polymer blends of polystyrene and
poly(methyl methacrylate)
DA Winesett,1
* H Ade,1
J Sokolov,2
M Rafailovich2
and S Zhu2
1
Department of Physics, North Carolina State University, Raleigh, NC 27695-8202, USA
2
Department of Materials Science and Engineering, SUNY at Stony Brook, Stony Brook, NY 11794, USA
Abstract: We studied the effects of different substrates on the development of the morphologies in thin
Ūlm polymer blends in as-spun and annealed Ūlms. We have utilized thin Ūlms of blends of polystyrene
and poly(methyl methacrylate) spun cast on Si, Au and Co surfaces, and produced quantitative
composition maps with near edge X-ray absorption Ūne structure (NEXAFS) microscopy as a function
of annealing time. We observed a marked dependence of the morphologies and the qualitative
dynamics on the surface composition.
# 2000 Society of Chemical Industry
Keywords: PS; PMMA; homopolymer; blends; phase segregation; thin Ūlm; NEXAFS microscopy; surface

  

Source: Ade, Harald W.- Department of Physics, North Carolina State University

 

Collections: Physics