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Photo and gamma rays induced polymerisation of the bis(aminoacid) fumaramide self-assemblies

Recent study in a field of supramolecular gels resulted in the development of recognizable areas in materials chemistry with an emphasis on the self-organizing soft materials.1 They have a great opportunity for specific applications in various fields, such as pharmaceutical, food and cosmetic industry or in tissue engineering and regenerative medicine. Polymerization can improve the mechanical properties of supramolecular gels, or prepared the specific polymer materials. In order to achieve "solid-state" reaction within the gel network is necessary to meet the special requirements of self-organization of organogelators. This especially refers to the distance of the atoms entering the reaction and position of functional groups. Our attention was focused on the synthesis and investigations of the properties of new gelators.2 The Leu, Val, Phe and Phg fumaramides derivatives were synthesized and characterized. Their advanced self-organization into gels and their polymerization (covalent crosslinking) induced by photo and gamma radiation were tested. We have shown that small changes in the structure of compound cause specific self-organization through non-covalent interactions which effects on the reactivity of crosslinked moleculs. Gelators with two polymerized functional groups experienced a successful "solid-state" reactions without compromising the morphology of the initial gel network.

gamma rays polymerisation ; supramolecular gels ; soft materials

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