Developing silicones that are friendlier toward health and the environment

Polysiloxanes, the scientific name for silicones, possess exceptional properties, and are used in numerous fields ranging from cosmetics to aerospace. They are absolutely everywhere! However, they have a major flaw, as small, cyclic oligosolixanes—toxic for the environment and identified as an endocrine disruptor—form during their synthesis. To correct this drawback, a team of scientists1 led by a CNRS researcher recently developed a new process for synthesising silicones in a cleaner and more environmentally-friendly manner by preventing the formation of these small cyclic oligosolixanes. The results will appear in Science on 1 September, and could have a considerable impact on the industrial sector.

From the Fundamental and Applied Heterochemistry Laboratory (CNRS/Université de Toulouse Paul Sabatier), the company Elkem Silicones, and the Chemistry Department of the Autonomous University of Barcelona. END