TERPLUS is a functional polymer industrialized by Otsuka Chemical using the TERP method, a living radical polymerization method.Together with Prof. Shigeru Yamako's group at Kyoto University, we have been conducting research and development on our original controlled radical polymerization technology "TERP method". TERPLUS is a functional polymer synthesized by the TERP method, and it exhibits unique functions by controlling the molecular weight distribution and polymer structure to a high degree, which was not possible by the conventional industrial radical polymerization method.