Block copolymer self-assembly in thin films is currently of great interest as a bottom-up approach for generating templates and scaffolds with well-defined periodic nanostructures of spherical, cylindrical, and lamellar morphologies. In addition, adding small molecules into the block copolymer which has strong interaction with one of the component of block copolymer can have great advantages of well-ordered particle arrangement and different nanostructures from neat block copolymer itself. We investigated supramolecular assembly in thin film via strong hydrogen bonding between small molecule including ferrocene and block copolymer. Taking advantage of a solvent annealing process, we obtained different nanostructures and surface morphology of supramolecular assembly. Distribution of small molecules was confirmed by atomic force microscope (AFM) and grazing incidence small angle x-ray scattering (GISAXS). Finally, when solvent annealing, the effect of solvent mixing ratio on the structures was also investigated by small angle neutron scattering (SANS) measurement.

Supramolecular assemblies of block copolymer and small molecules using solvent evaporation method

248th National Meeting (2014)

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