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Substrate dependence of morphology in thin film polymer blends of polystyrene and poly(methyl methacrylate)

✍ Scribed by Winesett, D?A; Ade, H; Sokolov, J; Rafailovich, M; Zhu, S

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
599 KB
Volume
49
Category
Article
ISSN
0959-8103

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✦ Synopsis

We studied the effects of different substrates on the development of the morphologies in thin ®lm polymer blends in as-spun and annealed ®lms. We have utilized thin ®lms 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 ®ne 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.

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