2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N
E
W
S
L
E
T
T
E
R


 

Endowed Chair to Honor Clarkson University Professor Egon Matijevic'

continued from page1

Charles and Lucia Shipley are long-time friends and supporters of Clarkson University. Both entrepreneurs, the Shipleys founded and built the Shipley Company into a multi-million dollar international corporation that has made significant discoveries in the field of specialty chemicals for the electronics industry. The company's early involvement in microelectronics and semiconductors has resulted in many technological innovations and numerous domestic and foreign patents. The Shipley family foundation endows a Clarkson fellowship in chemistry, underwrites the Shipley Distinguished Lecture Series, and named the Shipley Center for Leadership and Entrepreneurship in the School of Business.

Professor Matijevic', the Victor K. LaMer Chair in Colloid and Surface Science, is a renowned chemist well-known for his pioneering work on numerous topics focusing on fine particle science and engineering such as the preparation of monodispersed colloids and composites, dispersion stability, particle adhesion, heterocoagulation, aerosols, ceramics, and pigments. He is also involved with developing materials for multilayer capacitors, improving materials used in the production of computer chips, and mitigating water and air pollution.

Professor Matijevic' is the author of over 550 scientific papers and has more than 12 patents. He has delivered many plenary and keynote lectures around the world and has numerous awards to his name. He is the only individual ever to receive all three major awards of the American Chemical Society in his field of colloid chemistry: The Kendall Award (1972), the Langmuir Distinguished Lecturer Award (1985), and the Ralph K. Iler Award (1993). He was also awarded the Thomas-Graham Award in 1985, the highest award of the oldest colloidal society in the world, Germany's Kolloid Gesellschaft. In addition he has attracted millions of dollars of research support, and was instrumental in the founding of the Institute of Colloid and Surface Science at Clarkson University, serving for many years as its director. He also played a vital role in the emergence of Clarkson's Center for Advanced Materials Processing (CAMP) and its recognition as a Center for Advanced Technology (CAT) in New York State.

 

 

 

TOP
PREVIOUS PAGE
NEXT PAGE
INDEX PAGE

Page
2

 

 

 

 

Research in CAMP Professor Devon Shipp's lab centers around the synthesis of novel, well-defined and functional polymer materials. Since his research involves a significant amount of organic and polymer synthesis, NMR is constantly used for structure elucidation and molecular weight determination. The main focus of his work is on polymer-silicate nanocomposites. Professor Shipp and his group polymerized a number of monomers (e.g. styrene, methyl methacrylate, n-butyl acrylate) using the living radical polymerization method called atom transfer radical polymerization (ATRP) from a silicate-bound initiator. Furthermore, they successfully produced a number of block copolymers using this technique. These block copolymers exhibit phase separation, as would their untethered counterparts, but on a smaller scale (i.e. 5-10 nm vs. 50-100 nm). This is the first example of such block copolymer-silicate nanocomposite materials.


The Bruker Avance 400 NMR magnet features Bruker's new 'Ultra-Shield' technology to minimize stray magnet field lines..


The cabinet houses the instrument's electronics, such as the high-powered amplifiers, signal generators, variable temperature controllers, and the solid state accessories. All of the data is collected and analyzed on a user-friendly Windows-based PC.

An interesting aspect of this work is that the measurement of the molecular weights of these polymers via gel permeation chromatography (GPC) is complicated by the quaternary ammonium salt end-group present, making the polymer behave surfactant-like. The molecular weight averages determined by GPC were 10-50% lower than expected. However the results of using NMR to determine molecular weights ( using end-group analysis) were in excellent agreement with the predicted molecular weights. Professor Shipp's future work in this area will include the use of solid-state NMR analysis to determine the degree of exfoliation in the nanocomposite materials. Even though the study of polymer-silicate nanocomposites has been very active during the past decade, quantitative determination of the amount of exfoliation and intercalation within the silicate structure has been difficult. The extent of dispersion of the silicate layers obviously greatly affects the properties of the material, and is therefore an important parameter to determine. Solid-state NMR has the potential of providing this crucial information. Professor Shipp plans to pursue this investigation utilizing the new solid-state capabilities of the instrument at Clarkson University. (See photos.)

For more information about Professor Shipp and his research, please call him at 315-268-2393 or send email to shippda@clarkson.edu.