원병묵 교수

Highly stretchable polymer composite microtubes of poly(methyl methacrylate)/polypyrrole (PMMA/ PPy) were produced as a microarch shape by a meniscus-guided approach using colloidal solutions of the composite polymers. The polymer composite (PMMA/PPy) microarches show high stretchability up to 80% maintaining the electrical properties. Moreover, the microarches endure repeated stretching over 104 (9 102) cycles at 20% (80%) stretching without degradation of the electrical properties. Th stretch

Colloidal systems or colloids consist of microparticles or nanoparticles (solute) uniformly suspended in a liquid (solvent), also called colloidal suspensions. They can mimic and exhibit microscopic or atomic aspects of molecular and atomic systems. They have been increasingly studied because of their similarity with atomic systems. They can be microscopically observed by optical microscopes because they are large enough in size and slow in motion to be monitored; microscopic methods are very us