Communication orale présentée par Thomas Lebarbé, Chef de projets Lipochimie à l’ITERG, le 5 mai 2015 lors du Symposium IGCS 2015 (3rd International Symposium on Green Chemistry) à la Rochelle (3-7 mai 2015)
Vegetable oils, which are annually renewable, are the most important sustainable raw materials for the chemical industry. Indeed, vegetable oils are already heavily used as raw materials in industry for surfactants, as cosmetic products, lubricants, in paint formulations, as flooring materials and for coating and resin applications. Vegetable oils or fatty acid derivatives are raw materials of great promise and offer new tailor-made structures with variable functionalities. Being easy to obtain and having ability to mimic petroleum-based products, there has been a plethora of examples in the synthesis of molecules, resins and polymers issued from plant oils. Nevertheless, the price for these new materials remains the main limitation that affect their market potential. It is thus necessary to find cost-effective solutions to high performance bio-based products. For a few years, we have been interested in the preparation of bio-based polymers by derivatizing triglycerides using industrially and economically viable chemical routes. As a proof of concept, soft lipidic polymers were employed as additives to tailor polylactide (PLA) toughness. The preparation of aliphatic polyesters obtained from industrial building blocks derived from plant oils will be presented and the effect of the polyester additives on PLA toughness will be discussed. Special emphasis will be devoted to the structure-properties relationship of these polyesters and their copolymers/ blends with PLA. This presentation will also highlight the scaling-up of the developed additives in order to bridge the gap between the proof of concept and the market. To be able to address the challenges of products development, this work has taken benefit from the high quality infrastructures of CEDOP (European Center for OleoProducts Development) platform which is part of ITERG’s oleochemistry department. This technological platform dedicated to the valorization of plant oils biomass in industrial applications will be described to illustrate the unique facilities that allow the development of a bio-product from the native plant oil refining to the pre-industrial production thanks to oleochemistry transformations.