title: Nanostructured magnetic thin films from organometallic block copolymers: pyrolysis of self-assembled polystyrene-block-poly(ferrocenylethylmethylsilane).
abstract: The pyrolysis of cylinder-forming samples of the diblock copolymer polystyrene-block-poly(ferrocenylethylmethylsilane) (PS-b-PFEMS) in bulk and in thin films has confirmed that these materials are useful for the generation of semi-ordered arrays of C/SiC ceramics containing Fe nanoparticles which are derived from the organometallic domains. In many cases, the ceramic mass yields were predictable and produced ceramics bearing a monomodal distribution of iron nanoparticles due to the nanoscaled structure of the preceramic PFEMS domains. The pyrolysis of thin films stabilized by cross-linking the PS domains with UV light demonstrated high areal yields, improved shape retention, and the presence of cylinder-centered magnetic nanoparticles.
authors.affiliation: Department of Chemistry, University of Toronto, Toronto M5S 3H6, Canada.
authors.forename: David A
authors.initials: DA
authors.lastname: Rider
authors.forename: Kun
authors.initials: K
authors.lastname: Liu
authors.forename: Jean-Charles
authors.initials: JC
authors.lastname: Eloi
authors.forename: Lawrence
authors.initials: L
authors.lastname: Vanderark
authors.forename: Ling
authors.initials: L
authors.lastname: Yang
authors.forename: Jia-Yu
authors.initials: JY
authors.lastname: Wang
authors.forename: Dan
authors.initials: D
authors.lastname: Grozea
authors.forename: Zheng-Hong
authors.initials: ZH
authors.lastname: Lu
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Russell
authors.forename: Ian
authors.initials: I
authors.lastname: Manners
mesh_terms: D003460:Crystallization / Q000379:methods*; D006358:Hot Temperature; D046911:Macromolecular Substances / Q000737:chemistry; D008280:Magnetics / Q000379:methods*; D008422:Materials Testing; D008567:Membranes, Artificial; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D012821:Silanes / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D008567:Membranes, Artificial; D012821:Silanes