Fabrication and Structural Control of PLLA/clay Two-dimensional Nanocomposite in Organized Molecular Films

抄録

Langmuir-Blodgett (LB) films of organo-modified montmorillonite (abbreviated as C18-clay) and poly(L-lactic acid) (PLLA) / C18-clay intercalated multilayer films formed and the structures were investigated by out-of plane X-ray diffraction (XRD), in-plane XRD, and atomic force microscopy (AFM). Intercalated multilayers were constructed by the application of the LB method to C18-clay monolayers and the horizontal lifting method to PLLA monolayers. Further, surface morphology of PLLA : C18-clay mixed Z-type monolayers on solid were also estimated by AFM. Because these systems are two-dimensional ultrathin layer models related to polymer / clay nanocomposite as hybrid material in bulk, experimental results in this study are discussed in the view of formation mechanism and origin of functionality of three-dimensional polymer / clay nanocomposite materials, referring to the structural information of these organized molecular films.