David Y. Chung received a B.S. from National Cheng Kung University in Taiwan and a Ph.D. under Professor Joseph P. Kennedy from the Institute of Polymer Science, The University of Akron.  After graduation from Akron, David spent one year at Centre National de la Recherche Scientifique (C.N.R.S.) in Lyon, France as a visiting scientist, before he joined the Central Research of Dow Chemical in Midland, MI., where he worked on anionic polymerization and block copolymers.   Three years later, David joined Paramins Division of Exxon Chemical Technology in Linden, NJ doing R&D and commercialization of new lube oil additives.   After 13 years in NJ, David moved to Exxon Chemical’s Butyl Polymers Technology in Baytown, TX and worked on various butyl process and product R&D projects until he retired from ExxonMobil in 2006.  David is the author or co-author of over 50 patents associated with his industrial R&D work.   David is also one of the recipients of the 2010 Thomas A. Edison Patent Awards sponsored by New Jersey Research & Development Council.

After retired from ExxonMobil, David was tapped by PMSE in 2007 to manage the investments of PMSE funds, with the objectives of maintaining a steady cash flow to support various PMSE activities each year and enhancing PMSE’s long-term financial security.   Besides managing investments for himself as well as for PMSE, David also enjoys traveling to various parts of the world each year in retirement

Anthony "Jay" Dias received a B.S. degree in Chemistry from Kean College in 1982, and a Ph.D. in Polymer Science and Engineering from the University of Massachusetts in 1986. Since then he has worked for the ExxonMobil Chemical Company holding a number of positions in both research and management. Jay currently holds the position of Staff Chief Scientist. His research has focused on polymer blends, networks, simulation, nanocomposites, polymer surfaces and interfaces, the control of polymer topology, and the application of this research to develop new polymer products. His research has resulted in over 25 publications and 50 US patents.

Jay has been a member of ACS since 1982 and an active member in three divisions including PMSE, POLY and RUBBER where he often organized and chaired symposia. He has served the PMSE division in several capacities; ranging from Technical Program Committee in 1998 through division Chair in 2004.  Since that time Jay has served as the Chair of Symposium Funding and is currently ACS PMSE Councilor (2014 – present). Jay became a ACS Fellow in 2015, a PMSE Fellow in 2018 and the recipient of the PMSE Distinguished Service award in 2019.