He is a researcher in Centre National de Recherche Scientifique (CNRS) which he joined first in Stasbourg then in Paris where he worked on theoretical and experimental aspects of polymer self-assembly and dynamics, interfaces, gels and charged polymers.
From 1996 to 2003 he was the founding director of a joint laboratory between CNRS and chemical company Elf Atochem (later Arkema) which regrouped researchers from academia and industry.
Leibler is a member of National Academy of Engineering, recipient of CNRS Silver Medal, France IBM Prize in Material Science, the Polymer Physics prize of the American Physical Society (2006) and the Polymer Chemistry Award of the American Chemical Society (2007).
In 2014, he was awarded EPJE Pierre-Gilles De Gennes Lecture Prize.
In March 2019, Ludwik Leibler received honorary doctoral degree from the division of the Faculty of Sciences of Ghent University .
The 2019 European Polymer Federation (EPF) prize was awarded to Ludwik Leibler “For groundbreaking contributions to the understanding of the phase behavior of block copolymers and for the discovery of new materials based on dynamic bonds like selfhealing rubbers, vitrimers and tissue glues” .