2018 Opening Session
and expert Panel Discussion
Wednesday Morning, February 7, 2018
2018 PLENARY SPEAKER
Prof. Costanzo graduated from Carnegie Mellon University in 2001 with a BS in Chemistry. As an undergraduate, he worked for Prof. Krzysztof Matyjaszewski for three years preparing materials via Atom Transfer Radical Polymerization. He then received his Ph.D. in organic chemistry from Timothy Patten at University of California at Davis, where he focused upon polymer and nanoparticle synthesis. He was awarded a National Research Council Postdoctoral fellowship at the Army Research Laboratory. As a post-doc, he worked in the weapons and materials division developing new materials for wide range of applications. He joined California Polytechnic State University in 2007 and is currently a Professor. His research focuses upon the development of structure-property relationships by exploiting simple and efficient methodology, such as Diels-Alder chemistry, to create dynamic and stimuli-responsive materials.
Abstract: Incorporating Diels-Alder Chemistry to Prepare Thermally-responsive Materials
Product Development Chemist
26701 Telegraph Rd.
Southfield, MI 48034 USA
The Sidney Lauren Memorial Lecture
Don graduated with a BS in Chemistry from Wayne State University in Detroit in 1984 and joined BASF Automotive Coatings. He has worked in both resin development and topcoat development including basecoat, clearcoat and 3-wet systems. With his experience managing clearcoat service for more than 15 paint lines, Don is now moving to a role as Intellectual Property Manager. After 32 years with BASF, he has 32 patents and has published numerous articles.
CALCULATION OF CROSSLINK DENSITY OF THERMOSET POLYMERS
The practice of calculating the crosslink density of a polymer network has been described by numerous authors going back to Flory. In most cases, the format for the calculations is based on a derivation. This can make the calculations quite difficult, and in some cases, terms are reused referring to both the prepolymer constants and those of the final network. We have reformatted these calculations into a more intuitive process based on prepolymer constants that are familiar to coatings chemists. We emonstrate the equivalence of these calculations to those of previous authors for various degrees of prepolymer functionality in a condensation cross link reaction. Crosslink density measurements are presented to validate the effect of prepolymer degree of functionality that has been questioned by some. We also apply these methods to ultraviolet light cured systems and derive the relationship between kinetic chain length and crosslink density for several acrylate oligomers.