Photochemical Reactions of Dyes and Olefins in Monolayer Films and Supported Multilayers
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The main purpose of the conference, for which this paper is contributed, was to assess the technological possibilities for membrane-derived or mimetic structures such as bilayers, thin films and vesicles. In particular, the present manuscript will focus on Langmuir-Blodgett films generated at the air-water interface and supported multilayer assemblies formed therefrom. Most of the phenomena which will be discussed concerning reactivity in these assemblies are photophysical or photochemical in origin. From a chemist’s perspective the question of possible technological applications (and limitations) subdivides into several parts; since we are dealing with an “organized assembly” it is necessary first to understand this organization on a molecular level and how it may be controlled or manipulated. Technological applications must ultimately depend on unique features of structure or reactivity so it is necessary to develop, again on a molecular level, an understanding of structure and reactivity relationships in these assemblies and how these may be reflected in macroscopic properties. In the case of L.B. films and supported multilayer assemblies one is clearly dealing with a biomimetic system; a major question is thus whether such “mimetic” structures can offer advantages over natural systems. With respect to technological applications major questions which must be addressed concern ease of preparation and manipulation, the potential to go from laboratory scale to device and all of the sub-questions concerning molecular and macroscopic stability, reproducibility and special materials.
KeywordsTrans Isomer Reversed Micelle Monolayer Film Photosensitize Oxidation Multilayer Assembly
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