An SPM study of time dependent crystallization processes in iso-propyl-calix-[6]-arene thin films

Abstract

The crystallization process during annealing at 100°C of thin films of iso-propyl-calix-[6]-arene has been studied using topographic and lateral force imaging of contact mode scanning probe microscopy. The crystallization proceeds from sub-micron crystallites with mass migration to form large crystalline wall-like structures several microns in width and over 100 μm in length. During the annealing these wall-like structures compact with a concomitant decrease in width. Lateral force imaging shows the presence of moiré-pattern like zones of high and low friction forces.