Abstract:

The chemical world is abundant and diverse. One of the main purposes of laboratory teaching is revealing the mystery of product generation, speculating the micro process of product growth through the observation of macro chemical phenomena, and enhancing students' interest in chemistry, to deepen students' understanding of various chemical synthesis processes. In this experiment, the colorful molecular aggregates were taken as the target products to create an "interface reaction" in a self-designed reactor. The colorful (such as white, blue, green and pink) molecular aggregates with hollow tubular and coral reef-like structures were prepared on the surface of a ceramic core based on permeation and diffusion effects, surface tension, and the interfacial reaction mechanism. The method of this popular science experiment is safe, novel, and simple. Meanwhile, the phenomenon of this experiment is obvious with high ornamental value. The objective of discovering the utility and appeal of chemistry and stimulating students' enthusiasm for learning chemistry in the process of exploring the formation of the micro world will be realized.

Key words: Molecular aggregate, Interface reaction, Penetration and diffusion, Surface tension, Beauty of chemistry