Mark Welker, Ph.D.

ExxonMobil Chemical Co.
Global Specialty Polymer Technology
5200 Bayway Dr.
Baytown, TX
USA 77520

Biographical Sketch:
Mark F. Welker received a B.S. in Chemistry from the University of North Carolina at Chapel Hill, where he was a Morehead Scholar, and a Ph.D. in Chemistry from Pennsylvania State University, where he studied organic, inorganic, and organometallic polyphosphazenes under Dr. Harry R Allcock. After a Post-Doctoral Fellowship at Los Alamos National Laboratory, where he synthesized and evaluated novel macromolecular chelators for actinides and polyelectrolytes for lithium batteries, he was a Group Leader for TPL, Inc., developing energetic materials, energy storage polymers, and ceramic electrode materials. He then joined Shin-Etsu Silicones of America, where he was the Technology and Development Manager, working with silicone rubber, functional polyorganosiloxanes, organosilanes, and silicone resins. Since 2001 he has been with ExxonMobil Chemical Co. and is currently a Staff Chemist in Global Specialty Polymer Technology, working with Vistalon™ EPDM rubber, having previously supported Santoprene™ thermoplastic elastomers and Exxtral™ specialty polypropylene compounds.

1 High Molecular Weight EPDM Grade for Enhanced Application Performance