Polymerization of Semi-Fluorinated Alkane Thiol Self-Assembled Monolayers Containing Diacetylene Units

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)16C⋮CC⋮C(CH2)10SH (n = 2, 3) and CF3(CF2) n (CH2)11C⋮CC...

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Bibliographic Details
Published in:Langmuir 2001-10, Vol.17 (21), p.6616-6621
Main Authors: Cheadle, E. M, Batchelder, D. N, Evans, S. D, Zhang, H. L, Fukushima, H, Miyashita, S, Graupe, M, Puck, A, Shmakova, O. E, Colorado, R, Lee, T. R
Format: Article
Language:English
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Summary: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)16C⋮CC⋮C(CH2)10SH (n = 2, 3) and CF3(CF2) n (CH2)11C⋮CC⋮C(CH2)10SH (n = 9, 12) onto the surface of gold. The polymerization of the monolayers was initiated by UV irradiation and was monitored using resonance Raman spectroscopy. SAMs with short semi-fluorinated portions were found to polymerize more effectively than those with longer portions, indicating that steric factors become important with increasing perfluorinated chain length.
ISSN:0743-7463
1520-5827
DOI:10.1021/la010828e