3. Membranes made of biosourced or biodegradable polymers

Against a backdrop of dwindling fossil resources, it seems essential to propose solutions for replacing the predominantly petrosourced and non-biodegradable polymers currently used to manufacture filtration membranes with materials derived from renewable resources. The following paragraphs summarize the work carried out to this end.

The properties of the main biopolymers will only be briefly introduced with regard to their application in the membrane field. For more detailed information on biopolymers and the societal issues surrounding this topic, please refer to [CHV 4 039]...