We report the formation and subsequent topochemical polymerization of semi-
fluorinated self-assembled monolayers (SAMs) containing diacetylene groups.
The SAMs used were formed via the adsorption of the following derivatives:
CF3(CF2)(n()CH2)(16)C dropC-C dropC(CH2)(10)SH (n = 2, 3) and CF3(CF2)(n)(
CH2)(11)C dropC-C dropC(CH2)(10)SH (n = 9, 12) onto the surface of gold. Th
e polymerization of the monolayers was initiated by UV irradiation and was
monitored using resonance Raman spectroscopy. SAMs with short semi-fluorina
ted portions were found to polymerize more effectively than those with long
er portions, indicating that steric factors become important with increasin
g perfluorinated chain length.