Estimation of heterogeneous surface structure of blend polymer film consisting of hydrophobic and hydrophilic polymers in water by atomic force microscope
Surface structures of films cast from pyridine solutions of polystyrene (PS), poly(2-hydroxyethyl methacrylate) (PHEMA), and their mixture (PS/PHEMA=1/1, w/w) in air and water were examined with atomic force microscopy (AFM) using force volume mode. The AFM measurement was a useful tool to clarify that the PS/PHEMA blend film in water had a heterogeneous surface consisting of a hard PS matrix and soft PHEMA domains.
KeywordsAFM Force curve Surface hardness Mapping PS PHEMA In water
Unable to display preview. Download preview PDF.