SELF-ASSEMBLED THIN-FILM BLENDS BY POLYMER CODEPOSITION - POLY(ETHYLENE OXIDE) AND POLY(METHYL METHACRYLATE)

Two-component self-assembled films have been fabricated by codepositio n of sulfur-derivatized poly(methyl methacrylate) (S-PMMA) and poly(et hylene oxide)(PEO). The unique surface morphology which results has be en investigated by polarized infrared spectroscopy, contact angle meas urements, and ellipsometry. In this binary blend, a coexistence of bot h PEO crystalline domains and an amorphous blended matrix was observed . Further investigation revealed that the PEO chains in the crystallin e regions were oriented preferentially with their helical axes normal to the substrate surface.