News & Events
Chemistry Weekly Seminar - Dr. Matthew Paige
Posted on 2018-01-09 in Events
Feb 16, 2018
Phase-separation in Mixed Surfactant Monolayers, or
Why "Lipophobic" is a Bad Word
Surfactant monolayers consisting of a mixture of hydrogenated and perfluorinated compounds tend to undergo phase-separation at the air-water interface to form highly-ordered surfaces. My research group has been attempting to understand the underlying molecular and thermodynamic factors which contribute to the diverse morphologies observed in these mixed systems. Recently, we have begun to explore the use of synchrotron-based liquid surface x-ray scattering methods, including Glancing Incidence X-ray diffraction and X-ray reflectivity, to probe molecular-scale packing and organization of film components at the air-water interface. These approaches have led to new insight into factors which control micron-scale film morphology. I discuss these new measurement results in the context of previous experiments, particularly in terms of the properties of the perfluorinated surfactant component, the behaviour of which is often not appropriately described in the literature.
Chemistry Weekly Seminar - PhD Candidate Vankata Garapati
Posted on 2019-04-18
Venkata Garapati, PhD Candidate, will present a seminar at 10:30 a.m. in Thorvaldson 159.
Chemistry Weekly Seminar - Dr. Rob Britton
Posted on 2019-03-14
Dr. Robert Britton, Department of Chemistry, Simon Fraser University, will present a seminar at 4:00 pm in Thorvaldson 110.
Special Seminar - Dr. Darren Derksen
Posted on 2019-03-06
Dr. Darren Derksen will present a Special Seminar at 11:30 am in Geology 261
Special Seminar - Dr. Amy Stevens
Posted on 2019-02-08
Dr. Amy Stevens, Department of Chemistry, will present a seminar
Chemistry Weekly Seminar - PhD Candidate Amara Zuhaib
Posted on 2019-01-25
Amara Zuhaib, PhD Candidate, will present a seminar at 2:30 p.m. in Thorvaldson 271.