The objective of this theme is to design molecules with high added value. The aim is to develop clean processes to limit the energy consumption, production and discharge of by-products or waste during the transformation of organic molecules and to promote the use of renewable carbon sources.The project is based on 2 main objectives:1- valorisation of biomass (success, lipids)the objective is to develop bio-based chains for the manufacture of products of conveniences currently available by petrochemical2-catalytic materialsthe objective is to develop new analytical techniques allowing to characterise, in near real time and very fine ways, the chemical materials that have been synthesised.