年卷期:Tsutomu Yokozawa was born in Chiba in 1957. He received his B.S. (1981), M.S. (1983), and Ph.D. (1987) in organic chemistry from the Tokyo Institute of Technology under the direction of Professor Nobuo Ishikawa and Professor Takeshi Nakai. In 1985, he had already started an academic career in the Research Laboratory of Resources Utilization, Tokyo Institute of Technology, as a Research Associate, and was promoted to Assistant Professor in 1988. He joined the Department of Applied Chemistry, Kanagawa University, as a Lecturer in 1991, and was promoted to Associate Professor in 1993. From 1997 to 1998, he worked as a visiting scientist at the University of Illinois at Urbana-Champaign with Professor J. S. Moore. He was promoted to Full Professor in 1999. He was also a researcher for Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), from 2001 to 2005 and a guest professor at Wuppertal University in 2010. He received the Award of the Society of Polymer Science, Japan, in 2007. He has been Asian Editor (chemistry and synthesis) of the journal Polymer since 2014. His research interest covers controlled synthesis of polymers and supramolecular chemistry of polymers, as well as synthetic organic chemistry.Yoshihiro Ohta was born in Kanagawa, Japan, in 1983. He received his B.S. (2006), M.S. (2008), and Ph.D. (2011) in applied chemistry from Kanagawa University under the direction of Professor Tsutomu Yokozawa. After working as a Research Assistant Professor with Professor Atsushi Takahara at Kyushu University (2011), he joined the faculty of Kanagawa University, where he is presently an Assistant Professor. His research interests include synthesis and characterization of hyperbranched polymers, functional block copolymers, and graft copolymers with well-defined structures.