Abstract
Abstract Recent progress in synchrotron radiation techniques in a soft X-ray region has developed a new field in chemistry. Using tunable synchrotron radiation in a soft X-ray region, site selective core excitation can be achieved. The site-specificity of the consequent chemical reactions is one of the attractive issues and has been studied for various kinds of molecules. During these studies, a remarkable site-specific reaction has been found in the case of photon stimulated ion desorption (PSID) of polymethylmethacrylate (PMMA) thin films. The PSID of PMMA has been examined in order to elucidate the reaction mechanism using total electron yield, total and partial ion yield, Auger electron, and Auger electron–photoion coincidence spectroscopies. In this paper we discuss the possibility of controlling chemical bond scission by using the site-specific photochemical surface reactions mainly based on the recent experimental results.
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