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Spontaneous Vertical Ordering and Pyrolytic Formation of Nanoscopic Ceramic Patterns from Poly(styrene-b-ferrocenylsilane)

Authors


  • I. M. express his gratitude to the University of Toronto for a McLean Fellowship (1997–2003) the Ontario Government for a PREA Award (1999–2003), and the Canadian Government for a Canada Research Chair. K. T., K. K., and K. N. P.-B. acknowledge NSERC for postgraduate scholarships (1997–2001). T. P. R. acknowledges the support of the NSF-funded Materials Research Science and Engineering Center (MRSEC) at the University of Massachusetts and the Department of Energy Office of Basic Energy Sciences. C. J. H. acknowledges the support of the NSF-funded CPIMA MRSEC. We would also like to extend our gratitude to N. Coombs, J. Raez (U of T) and Y. Zhu (UMass) for their assistance with TEM imaging, and R. McAloney (U of T) and Z. Lin (UMass) for assistance with AFM.

Abstract

The rapid generation of nanopatterned surfaces using thin films of the amorphous diblock copolymer poly(styrene-b-ferrocenylethylmethylsilane) (PS-b-PFS) is reported. Spontaneous self-assembly into vertically oriented cylinders of PFS in a PS matrix is observed on a variety of substrates by spin or dip coating, irrespective of the substrate surface polarity. Pyrolysis of the films affords arrays of 20 nm Fe-containing ceramic nanoparticles, (see Figure, AFM, 4 μm2 scan area).

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