Polymerization of semi-fluorinated alkane thiol self-assembled monolayers containing diacetylene units

Citation
Em. Cheadle et al., Polymerization of semi-fluorinated alkane thiol self-assembled monolayers containing diacetylene units, LANGMUIR, 17(21), 2001, pp. 6616-6621
Citations number
34
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LANGMUIR
ISSN journal
07437463 → ACNP
Volume
17
Issue
21
Year of publication
2001
Pages
6616 - 6621
Database
ISI
SICI code
0743-7463(20011016)17:21<6616:POSATS>2.0.ZU;2-C
Abstract
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.