Compared study of cooperativity in PMMA nanocomposites and thin films

Organophilic montmorillonite (OMMT) was used as well as bare clay such as bentonite (BT). In a first step, we determine the size of CRR for s-PMMA and discuss the obtained values. Then in a second step, we compare the evolution of Tg(h) in two different systems e.g. thin films and BT nanocomposites in order to prove that the same mechanisms are at stake.