title: Disassembly of redox responsive poly(ferrocenylsilane) multilayers: the effect of blocking layers, supporting electrolyte and polyion molar mass.
abstract: Layer by layer (LbL) organometallic multilayers, composed of poly(ferrocenylsilane) (PFS) polycations and polyanions, were fabricated and characterized. Disassembly of redox responsive PFS(-)/PFS(+) films as well as multilayers consisting of PFS(-)/PFS(+) combined with redox inert bilayers was studied. The influence of parameters on disassembly kinetics and mechanism, such as distance between redox PFS multilayers and the electrode, effect of the top inert layer, the choice of the supporting electrolyte, the ionic strength of the solution, and the molar mass of polymers, was investigated. The results elucidate the details of the disassembly mechanism and provide design criteria for preparing templates with highly controllable disassembly kinetics.
authors.affiliation: Institute of Materials Research and Engineering, A(*)STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, Singapore. songj@imre.a-star.edu.sg
authors.forename: Jing
authors.initials: J
authors.lastname: Song
authors.forename: Dominik
authors.initials: D
authors.lastname: Jańczewski
authors.forename: Yujie
authors.initials: Y
authors.lastname: Ma
authors.forename: Mark
authors.initials: M
authors.lastname: Hempenius
authors.forename: Jianwei
authors.initials: J
authors.lastname: Xu
authors.forename: G Julius
authors.initials: GJ
authors.lastname: Vancso
mesh_terms: D020811:Biomedical Technology; D002412:Cations; D004566:Electrodes; D004573:Electrolytes; D005296:Ferrous Compounds / Q000737:chemistry*; D007477:Ions; D000075163:Metallocenes; D010084:Oxidation-Reduction; D011094:Polyethyleneimine / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D012821:Silanes / Q000737:chemistry*; D013499:Surface Properties; D013997:Time Factors
chemical_list: D002412:Cations; D004573:Electrolytes; D005296:Ferrous Compounds; D007477:Ions; D000075163:Metallocenes; D011108:Polymers; D012821:Silanes; D011094:Polyethyleneimine; C004998:ferrocene