Photochemistry of reactive surface-active compounds in adsorbed monolayers

Quantum Yield Values for the Decomposition of Several Surface‐active Photoreactive Amphiphiles

“…Despite the apparent utility of these surfaceactive photoreactive compounds for biological and other uses, quantum yield values for the decomposition of long-chain fatty acid derived a-diazoketones, acyl azides and azidoformates are unavailable. Our interest in these compounds was based on their utility as surface-modifying agents for hydroxyl-bearing surfaces, whereby the amphiphiles self-assembled on hydrophilic substrates and were subsequently grafted to the support by UV irradiation (Holden et al, 1987;McGarvey and Holden, 1990). In order to determine the efficiency of the surface photografting reaction, quantum yield measurements for the photodecomposition of several selected compounds were performed in hexane solution.…”

Chemistry in adsorbed monolayers. 3. Fourier transform infrared attenuated total reflectance study of photoreactive self-assembled monolayers

“…0743-7463/91/2407-2669$02.50/0 grafting of adsorbed long-chain -diazoketones, acyl azides, and azidoformates to surface hydroxyl groups (Figure 1). 18-20 Previous publications have dealt with the details of the chemistry in spread and self-assembled monolay-ers18, 19 as well as a thorough examination of the differences in the photochemical reactions of the amphiphiles in different environments (i.e. in cyclohexane solution and on the surface of alumina).…”