| 초록 |
The object of this study is to develop an intelligent polymeric material for the crack self-healing. It is the polymeric materials for crack healing which can be readily healed by thermal cycloaddition. Perfluorocyclobutane (PFCB)-contaning polymers have been studied as a unique class of fluoropolymers having excellent properties such as low dielectric constant, good thermal stability, high Tg, and optical transparency. In this work, the potential of a PFCB polymer as a thermally mendable material was investigated. 1,1,1-Tris(4-trifluorovinyloxyphenyl)ethane (TVE) for thermal healing was synthesized. The polyTVE having perfluorocyclobutane was synthesized by thermal polymerization. Crack were generated in polyTVE specimens, and a part of the cracked samples were heated to induce thermal healing reaction. The thermal crack-healing ability of a polyTVE was investigated by FT-IR. The crack healing in polyTVE was successfully demonstrated by the measurement of flexural strength. |
