Feature Article: Tapping Mode Atomic Force Microscopy of Surface Morphology of Polymer Blends

Application of tapping mode atomic force microscopy (TMAFM) phase imaging techniques to characterize the morphology of polymeric blends is reviewed. The basic principle of TMAFM phase imaging capability is introduced. A summary of phase contrast applications for various polymeric blend systems such as rubber-rubber, plastic-rubber, and plastic-plastic blends is extensively discussed. The review shows that AFM is a very useful technique in probing micro-phase dispersion, compatibility between blend components, and local mechanical properties in polymeric blend systems.