University of Notre Dame

Department of Chemistry, University of Notre Dame, Notre Dame, Indiana. 

Polychloroprene rubber (CR) is the most popular and versatile of the elastomers used in adhesives. In the early 1920s, Dr. Nieuwland of the University of Notre Dame synthesized divinyl acetylene from acetylene using copper(l) chloride as catalyst. A few years later, Du Pont scientists joined Dr. Nieuwland s research and prepared monovinyl acetylene, from which, by controlled reaction with hydrochloric acid, the chloroprene monomer (2-chloro-l, 3-butadiene) was obtained. Upon polymerization of chloroprene a rubber-like polymer was obtained. In 1932 it was commercialized under the tradename DuPrene which was changed to Neoprene by DuPont de Nemours in 1936. 

In 1934, French chemist Hoch reported that the action of phenylmagnesium bromide on the oxime of propiophenone (3) at elevated temperature gave two products. One was aziridine 4 and the other was erroneously assigned as hydroxylamine 5. In the subsequent years (1939 onward), Campbell at the University of Notre Dame determined that the purported hydroxylamine 5 was actually P-hydroxylamine 6. The scope of the Grignard reagents was extended to both aryl and aliphatic Grignard reagents. 

Prof. Dr. Joan F. Brennecke Department of Chemical Engineering University of Notre Dame Notre Dame, IN 46556... 

Eor an extensive list of reagents that have been used for this purpose and of compounds resolved, see Wilen, S.H. Tables of Resolving Agents and Optical Resolutions University of Notre Dame Press Notre Dame, IN, 1972. 

Edgar W. Day, Jr., Ph.D., is a native of southern Indiana. He received his B.S. in Chemistry from the University of Notre Dame in 1958 and his Ph.D. in Analytical Chemistry from Iowa State University in 1963. Dr. Day joined the Research Laboratories of Eli Lilly and Company in 1963, working in the... 

Cartwright, N. and Mendell, H. (1984), What makes physics objects abstract , in J. Cushing, C. Delaney and G. Gutting (Eds), Science and Reality, University of Notre Dame Press, Notre Dame, IN. 

Theodora W. Greene, Assistant Editor Jeremiah P. Freeman, Secretary to the Board Department of Chemistry, University of Notre Dame, Notre Dame, Indiana 46556... 

Arvind Varma, University of Notre Dame Editorial Board ... 

Hesse, Mary. Models and Analogies in Science. South Bend University of Notre Dame Press, 1966. 

DR. J. KERRY THOMAS (University of Notre Dame) Is there anything wrong with putting a fluorescent probe that is pH... 

DR. GUILLERMO FERRAUDI (University of Notre Dame) From your talk it appears that an important aspect of micelles is the modified reactivity imparted to excited states or chemical intermediates. If micelles are to be used to exploit this phenomenon, the structure of the micelle should be carefully defined. Can you tell us something more about the structural properties of micelles For example, if triton X-100 is used to form micelles, a variation in conditions yields micelles with different shapes, different dimensions, etc. 

M. F. Fernandes, Hydrogen Absorption and Embrittlement of Rare Earth Modified 2 1/4 Cr-l Mo Steels, PhD Dissertation, University of Notre Dame, 1989. 

Brother Columba (University of Notre Dame) With regard to earlier discussion on whether the data all support that divalent tin is positive, we have run about 30 coordination compounds of divalent tin, and all the isomer shifts are strongly positive. 

---