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Thursday, July 14, 2016 3:30 pm - 3:30 pm EDT (GMT -04:00)

Seminar - “pH-Controlled Complex Formation in Charged Polymer Systems” by Kenneth R. Shull, Department of Materials Science and Engineering, Northwestern University, Evanston, IL USA

ABSTRACT:  Complexes formed in systems containing both positive and negative charges are of fundamental importance in a variety of materials applications.  A common method for producing polyelectrolyte complex films is to sequentially deposit oppositely charged polymers, an effective but tedious process that is not readily scalable.  A focus on this talk is on the deposition of relatively thick films directly onto conducting surfaces, using electrochemical processes to modulate the local pH.  The process is carried out on a quartz crystal microbalance, which in addition to

Monday, July 18, 2016 11:30 am - 11:30 am EDT (GMT -04:00)

Seminar - “Electrical Conductivity, Electromagnetic Interference Shielding and Dielectric Properties of Carbon Nanotube/Polymer Nanocomposites” by Mohammad Arjmand, Postdoctoral Scholar, Polymer Processing Group, University of Calgary

ABSTRACT:  Carbon nanotube (CNT)/polymer nanocomposites (CPNs) have recently drawn great interest for use in electronics, due to their superior properties such as tunable electrical conductivity, light weight, low cost, corrosion resistance, processability, etc. (compare with properties of currently used metals). In fact, the polymer matrix is insulative; however, incorporating a low content of conductive filler transforms it into conductive via forming a conductive network.

Thursday, July 21, 2016 3:00 pm - 3:00 pm EDT (GMT -04:00)

Waterloo Institute for Nanotechnology and the Department of Chemical Engineering, Distinguished Lecture Series

"Adhesion, Friction & Lubrication of Surfaces & Liquid Films and their Relation to Diverse Phenomena Such as how Geckos Climb on Walls and Ceilings, Surface Damage, and Sensing" by Professor Jacob Isrealachvili, Chemical Engineering, University of California Santa Barbara, United States

Monday, September 12, 2016 11:30 am - 11:30 am EDT (GMT -04:00)

Seminar - “Fractionation of Algal Biomass for the Production of Biofuels using Ionic Liquids” by Valerie Orr, University of Western Ontario

ABSTRACT:  Microalgae have received a great deal of attention as a platform for biofuel production due to their photosynthetic nature. However, the over emphasis on the production of lipids for biodiesel synthesis can limit the productivity of algae cultures and undervalues the potential applications for the significant quantities of protein and carbohydrate fractions present in this biomass. Currently, the commercial prospects for microalgae biofuels are primarily inhibited by their low cell densities and the high cost of current lipid extraction processes.

Tuesday, September 13, 2016 9:30 am - 9:30 am EDT (GMT -04:00)

Seminar - “Challenges in the Development of Fuel Cells for Automotive Applications” by Thomas F. Fuller, Professor, School of Chemical Engineering and Biomolecular Engineering, Georgia Tech

The transportation system is a major source of emissions of carbon dioxide.  Fuel cell vehicles operating on renewable generated hydrogen is one of ways to remove carbon from the transportation system.  The main barriers for adoption of this technology is cost and hydrogen infrastructure.  The life cost of fuel-cell systems can be addressed by making the fuel cell more durable.  Specific challenges for fuel cell development are examined.