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Localized metallization of polytetrafluoroethylene (PTFE) can be achieved by an electroless deposition procedure, once PTFE has been reduced locally at the contact or in the vicinity of an electrode by scanning electrochemical microscope (SECM). This process takes advantage of the n-doped character of polymeric carbon obtained when reducing PTFE. Metallization was evidenced with Au, Ag and Cu by cyclic...
Reduced PTFE can be grafted by nitro and bromo-phenyl diazonium tetrafluoroborate salts in a manner similar to that used for carbon, except that no application of a reductive potential during grafting was required. Grafting was evidenced by cyclic voltammetry, X-ray fluorescence or ToF-SIMS. Nitro- and bromo-phenyl moieties were covalently linked to the PTFE material and could be eliminated only by...
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