Octadecylsilyl monolayers

Tabushi I, Kurihara K, Naka K, Yamamura K, Hatakeyama H. Supramolecular sensor based on SN02 electrode modified with octadecylsilyl monolayer having molecular-binding sites. Tetrahedron Lett 1987 28 4299-4302. 

Hydrophobic and/or van der Waals interaction has not been well studied. Only as late as 1988 were Yamamura et al. [143] venturesome enough to choose octadecylsilyl monolayers as a polymeric material for hydrophobic interactions. Templates such as adamantane, cholesterol, vitamin Kj, pyrene derivatives, and chlorophyll, amongst others, formed ester bonds to a long alkyl- or oligooxy-ethylene chain and these were present when octadecylsilylchloride was covalently bound to a SnOj electrode surface. The electrode surface was freed from the... 

Stationary phases. Five stationary phases from Shandon (Runcorn, Cheslvie, GB) were used they were spherical microparticules of 5 pm mean diameter. The four bonded silicas were manufactured from the same parent silica (Hypersil) and possess a monolayer coverage of trimethylsilyl (SAS Hypersil), dimethyloctylsilyl (MOS Hypersil), octadecylsilyl (ODS Hypersil) and cyanopropylsllyl (CPS Hypersil) groups. Their physicochemical properties are listed in Table II. The elemental analysis of carbon (SIC), corrected for the SIC value of naked silica, enables to estimate the surface concentration of the substituent (r ) with ... 

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