Rheological study of multilayer functionalized polymers: characterization of interdiffusion and reaction at polymer/polymer interface |
| |
Authors: | Khalid Lamnawar Abderrahim Maazouz |
| |
Institution: | (1) LR2P/Ingénierie des Matériaux Polymères IMP UMR CNRS #5627, INSA de Lyon-20 Avenue Albert Einstein, 696621 Villeurbanne, Cedex, France |
| |
Abstract: | Rheological behavior in molten state of multilayered polymers was investigated by dynamic mechanical measurements. The competition between polymer/polymer interdiffusion and interfacial reaction of functionalized polymers in a sandwich structure was followed by oscillatory mode under small amplitudes of deformation. The systems chosen for study were polyethylene (PE) grafted with glycidyl methacrylate/polyamide (PA) 6 as a reactive system and PE/PA6 as nonreactive one. Moreover, the interphase thickness was estimated by using thermodynamical models. Experimental results of bilayer systems were compared to existing models of multiphase systems. An expression of storage modulus as a function of welding time was also suggested. Thus, the fit between this one and the experimental data was satisfactory with the different appearing phenomena. |
| |
Keywords: | Rheology Interdiffusion Interfacial reaction Multilayer polymers Interphase |
本文献已被 SpringerLink 等数据库收录! |