Preparation and characterization of Clay-PBS nanocomposites in situ polymerization.

초록

Composites of poly(butylene succinate)(PBS) by in situ polymerization with an organophilic clay having a special functional group, namely twice functionalized organoclay (TFC) were prepared. The structure of nanocomposites was analyzed by using X-ray diffractometry (XRD), Thermo gravimetric analysis(TGA) and transmission electron microscopy(TEM). The silicate layers of PBS/TFC were exfoliated to a larger extent than PBS/C25A. Not only tensile modulus but tensile strength greatly enhanced as a result of PBS/C25A. The larger amount of exfoliation of the silicate layers in PBS/TFC as compared with that in PBS/C25A was attributed to the increased interfacial interaction between the polyesters and the clay through chemical reaction.